Monthly Archives: October 2015

Retention rate

Reading Time: 3 minutes


Retention ProblemPerhaps the most important aspect e-commerce analytics is retention rate (retention of users). After all, if users used your service once and never again after in most cases the service is going to fail.

Let’s start with how to calculate the retention rate. There are several ways. The easiest is to divide the remaining number of members to the number of all users who joined your service. For example, 100 unique users visited your website per day. Of these one hundred people, ten returned to the website. So, the retention rate is 0.1, or 10%.

Typically, this indicator is calculated for the first day, seventh, fourteenth, twenty-eighth, etc. For example, on day 0 hundred people visited the website and only 10 came back in the end of the month. Retention on day 28 is 10%. This is called the classic retention. Of course, the more days have passed from the day 0, the lower the retention rate.

Below are the common tips to improve retention:

Events. Promotions, bonuses, sales, tournaments, etc. Users should be aware that the frequent visits of the website will give him some prospects or benefits.

Gifts for the return. Game currency, options, etc.

Tasks. Daily missions, quests, puzzles, etc.

Characters and plot. People become attached to specific characters and watch the development of the plot/story.

Progress. Number of victories, medals, crystal, experience points, awards, status, results.

New faces. The more the user on the website, the more it opens up new opportunities, levels, mechanic, worlds, etc.

Remember that to attract a user is much easier than to retain him and to retain him is much cheaper than to attract a new one. This rule is working in any e-commerce and the money spent on retention of the customers have to be taken into account while calculating the LTV. Of course the high retention rate does not come for free, however to retain a user is much cheaper than to attract a new one.



In the article I have mentioned the tips how to engage the users to increase the retention rate so that users could come back more often to the service/website. As I have already mentioned in most cases the retention rate increase comes at expenses which are quite necessary if you want the customers to com back.

To remember the essence of retention rate, please try to solve the following:

Let’s assume that some Cool Polish University spent PLN 4000 on attraction of new students to some Cool Master Degree Program. The program is funded by EU (meaning it is free and student are not paying for the program). The only payment that students have to pay is exam fail-fee which is PLN 610, which is the only income to the University from the admitted student.

Let’s imagine that in the beginning of third semester the students of this program started to complain that they want to have seminars on Google AdWords and Google Analytics otherwise they are going to leave the program and the University decides to organize such seminars. The seminar on Google AdWords and Google Analytics costs PLN 2100 and for the Cool Polish University it is a “retention event” (meaning that people are going to leave the program if they will not have these seminars). For the Cool Polish University these PLN 2010 are additional “retention costs” which are not foreseen by the EU funding.

Now the question: How many students have to fail the exams in 3rd semester to have Google AdWords and Google Analytics seminar in the beginning of 4th semester?


Thank you.


Names, places and incidents either are products of the author’s imagination or are used fictitiously.

Turning meals into a fun game

Reading Time: 2 minutes

Those who have a child know that feeding it can turn into a real war. Those who does not, could probably hear this drama in a restaurants or friends’ houses etc.  In Argentina they decided to do something about it and came up with a weapon for these eating tragedies. They combined the reluctance to meals with unconditional love for games and what they received was this:


Yumit, an interactive plate designed  by Wunderman, that convinces kids to consume by converting what they eat into virtual energy that can be used for upgrades and extras on mobile games. Meals are weighed in real time, with an inbuilt sensor detecting how much food the child is eating. The more the kid will eat, the more ‘virtual energy’ it will receive, and then can use this energy in games. The plate has a LED display that keeps children informed of how many fun games they’ve unlocked, which turns the boring routine of eating into fun experience. The sets will be available in different colours. What is also important, you can wash it in a dishwasher.

The invention could be pretty powerful if it was integrated into popular games but in this moment there are not many games that the child could play using extra points from eating.

I am wondering if the children will really enjoy eating spinach which they hate, to get some points. Maybe producers are not aware that kids are really intelligent and they will understand pretty fast that they just have to remove food from the plate which does not really mean they will put it in their mouth… Parents control will be still inevitable, and arguments about the virtual points can become a new reality.

The Yumit plate is not on sales yet but you can make a pre-order on their website if you really believe that this can work with your kid.



Reading Time: 2 minutes


“No more usernames. No more passwords.
One look is all it takes to verify your identity .
Every password you use ,now you can replaced it on your eyeball!!!
Company “myris” converted one kind characteristic of your eye into encrypted code unique only to you. This device is size of hand ball ,key to success is that this special device does not storage any data, even your eye image , so you will not worry about someone stealing your password, furthermore it is more uniq and secure than face recognition voice recognition finger prints recognition and 3 time better than apple touch id.Cyber industry facts:

The cyber security space is fastest growing tech sector

  • A 30,000 foot view of the market last year
  • The worldwide cyber security market is estimated from $77 billion in 2015 to $170 billion by 2020.
  • The U.S. government has spent $100 billion on cyber security in last 10 years and has $14 billion budget for cyber security in 2016.

This company has potential to gain huge share of this market , this technology is unique
and probably we will meet with this technology in Poland in close future.In my opinion it will be hard to encourage pople to use it and for ordinary customer it is to expensive , and it need customization ,Secound obstacle is the service , when it brokes what then , I will have it send it to USA to fix it  and I will be unsecure or I will lost access to my accounts,by the way as customer of lenovo which send broken compter from poland to germany for 3 weeks , I will never buy anithing without good customer serviceanymore , especially personal things like phone ,computer or PASSWORDS

You plug the USB-based device into any available Windows or Mac port. On the PC, both Windows 7 and Windows 8, the system sees Myris as an external hard drive.

the price Myris is ($279.99) How much is worth security for you and for big corporation? It is possible to brake the system ?Would you use it?

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E-sport means gaming?

Reading Time: 2 minutes

When we talk about e-sport we imagine immediately guys in front of the computers who are playing CS Go, LOL or StarCraft. What about traditional meaning of ‘sport’? Is it possible to organize online sport competition and attract people to take part in it?

Various sports disciplines are used technical facilities such as measuring devices, additional referee who are only tracking recordings instead of the real game and have possibilities to replay it again. On the Internet, there are possibilities for consultation, purchase training plans, hiring an online coach.

DigitalCup is a great example of this trend: very innovative, uses modern technology and devoted to the reality. In 2012 the website was established. It offers online competition in four different equestrian disciplines: jumping, dressage, eventing (horse trials) and reining. On its website, it is posted a competition proposal with a required program. After paying the entry fee, the riders record the videos with their trials. Then they send it back and the video is assessed by the experts. After one or two weeks the results are announced, the awards handed out and every rider gets feedback about his trial.


Why is it working?

Horse riding is very expensive. It requires costly equipment, special infrastructure, an appropriate horse which can be rented or bought. If the rider wants to participate in a competition he needs to incur additional costs: entry fee, transportation costs, medical examination, registration in the association. Besides, participate in a competition involves a lot of stress for both rider and horse. Horses taking part in the competition must undergo a long and arduous training before they leave home stables. The horses act differently in a new place, can be disobedient and cause problems.

What is the future of sport?

In the digital age we are forced to redefine certain aspects of our lives. This also applies to sport. Is it means that Olympic Games 2040 we will watch only on YouTube and sportsman will not even leave their hometowns?  Or rivalry and emotion will turn out more important than money and convenience?

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IOS as a weakest point of APPLE

Reading Time: 3 minutes

Hello everyone. Couple weeks ago when I started to create content for this blog, I decided to write about the topics, that I really care about or which affect my daily life so irresistibly, that I have to share it with readers. I have been reaching the boiling point for a while and now I am ready to “spill over” my concerns 🙂

I am truly Apple guy: I have a Macbook, iPad, iPhone and iPhone, and I used to believe nothing could possibly change my positive attitude toward those devices. I was hooked on by its quickness, responsiveness, user interface and much more. But recently I got a feeling I would not have tolerated couple years ago – I got pissed off with IOS.

As far as I remember myself as an Apple fan, it used to be as follows: Android is an open system, that gives a user limitless options for customisations, but the user has to endure slow system and lots of bags in return. Whereas an IOS, as a counterpart, is a closed system, that restricts plenty of functions Android offers, but it gives a great opportunity to have a smooth, fast and intuitively comprehensive experience with its devices. People liked it or hated it, but Apple had its own philosophy in IOS development.


It lasted all the way till IOS6. Or for being precise till Scott Forstall, vice-president, responsible for IOS development, got fired. IOS5 appeared the system created under his supervision and then it started gradually plummet. To Apple’s credit, I must say IOS6 did not bring any killing feature, but at least it did not kill the user experience. Lets be honest – it’s hard to break what works perfect.

The consecutive system IOS7  was going to be a huge challenge since company decided to create it from the scratch. Flat design, new options, features and so called breakthroughes were summoned to accept the challenge sent by Samsung. At that time (2013) Apple funs could not mock Samsung as the did before: “IOS is not perfect anymore, but look at Samsung – it’s even more hilarious ” – now it’s note than extraneous. As a response to critics Apple released the worst (in terms of responsiveness, lags, battery life) system they had ever created. And they will “surpass” this system with IOS8 and 9.

ios6_ios7_home_screensMy personal experience suffered ever since. If someone thinks that the fact that I have Iphone4S is enough to exonerate Apple – I am totally in disagree.

Everything lags:

  1. Spotlight
  2. Multitasking
  3. Overal performance is rolling to the void
  4. Camera switches off on permanent basis

It was on IOS8. Please, do not install 9 on your 4S – it will inevitably kill it. I know, believe me 🙂

As an endorsement of my words: I saw a video with a guy benchmarking iPhone 6s+ on IOS9 and iPhone 4s on IOS5 and the latter doing pretty ok. It is like a hard stroke in apple fans’ faces…

Another annoying matter is localisation services. I really do not know what curbs Tim Cook and a team to develop this way?!?! Why Google and ALL its services are localised: Google Now, Google Maps, Assistants etc?? Why the next Apple’s “killing feature” will be non usable outside US? I believe it add another drop in the jar of Apple adherents and one day it will spill over and people will but Samsung and they will realise that everything that must work actually works. If Mr. Cook reads us – take care of this business. IOS is a golden cow for Your company!

As a concussion, I reckon it’s a huge topic to discuss, but I believe U have expressed the main points of my concern. Nowadays I really consider options how can I drop photos on my Mac from Android smartphone and it upsets me. But on the flop side, it’s a beginning of something new.


Popcorn Time (already) dead!

Reading Time: 2 minutes

You probably know Popcorn time, if not, it is or should I say it used to be the illegal alternative to Netflix. Free to use, this platform was offering the possibility to watch a large amount of movies, but also series in HD quality. The interface was really well made, subtitles were available directly on the screen, the user was able also to choose different quality, and generally the concept was brilliant even if it was illegal.

After that the web version was closed, it’s the company itself that is closing because of an additional conflict between de developers.


However, that would be disappointing if the whole project disappear completely. It is already confirm that new project will succeed, it names: Butter. This new offer will be legal in order to not repeat the same mistakes as in the passed.


The question is what was the reason of the troubles? Earlier last week, few Popcorn Time developers simply left the project. The reason is the idea of paid anonymizing VPN implementation; some of them thought that this new option would lead to legal trouble. Two version were available, the .io version considered as the safest one and Time4popcorn that was frequently accused to be a source of virus for the users.

It’s because of this second version that one of the main quality of Popcorn time have been destroyed, the safety issue.


So what is Butter?


It’s like Popcorn Time but without the elements that made people wary. This new application is created so that everybody can somehow contribute to desktop and mobile applications design. Butter allows to stream movies and shows directly from Bittorent. This new version will replace the “Old” Popcorn Time, however the content available will be lower due to filter of illegal content.

More: here and here


Reading Time: 4 minutes



Credit: Maya Stepien



  • Six Areas that Artificial Emotional Intelligence will Revolutionize

Article written by Alain de Botton

Wired Magazine (UK Edition – November 2015 (21st October, 2015)


  • Has Artificial Intelligence Outsmarted our Emotions?

Article written by Meng Li

Wired Magazine



In today’s world, due to the rapid development of digital technologies, many of us have had already a chance to interact with the ‘everyday use’ appliances (gadgets, home-designated devices) or even bigger, more technologically-complicated machines – robots, which not only perform their ‘core’ tasks, but also may add some unique values to these broadly defined relations. The devices are becoming more and more artificially intelligent.

Meng Li, the author of the article “Has Artificial Intelligence Outsmarted Our Emotions?”, stresses that the history of the relationship with technology is simple – we purchase machines and devices that we expected to fulfill certain needs. Moreover, we interact with technology with predictable interchange. What is more, Meng Li is also of the opinion that the technology companies must recognize the connections people are forming with these ‘intelligent’ devices, and create procedures to develop products accordingly – “because the devices that will prevail are those that not only please us, but those that we also hope to please”. What is also important to stress is the fact that while thinking about the machines of the future – and to be more specific, while concentrating on the issue of Artificial Intelligence (AI) – a vast majority of people puts the emphasis on the performance of rational executive tasks. However, according to Alain de Botton (Wired Magazine: “Six Areas that Artificial Emotional Intelligence will Revolutionize”) another, more complex scenario should be demonstrated here – a scenario which bases on the aspects of emotions and psychological dimensions of existence. It is time to focus on Artificial Emotional Intelligence (AEI).

In everyday life people make a lot of mistakes. We have problems with making decisions, regardless of the type of obstacles we are facing. What also has to be stressed here is the issue of emotionally wise decisions – they cannot be treated as lucky decisions. We have to remember that even though we are not infallible, our brains are unique, extraordinary. The emotionally wise decisions are the result of the impressive performances of our brains and they are therefore logically also forms of intelligence that can be replicated and improved upon artificially, with the help of microchips and code. Nowadays, we are able to conclude that this very specific type of scarcity – the scarcity of wisdom will soon be vanishing. The emotional intelligence will be in the center of attention. Alain de Botton emphasizes that AEI will revolutionize the following six areas of life:

  • self-knowledge
  • education
  • news media
  • art
  • shopping
  • relationships

AEI will provide us the self-knowledge we need – it will map our brains and alert us in good time as to the reality of our psychological lives. Furthermore, we will know what job we should be doing, but also we will know whom we should try to form a relationship with, and how. Mr. de Botton emphasizes that “AEI will give us a picture of our inner selves which will stop us making catastrophic errors on the basis of an inability to interpret our emotional functioning and psychological potential”. Moreover, AEI will help us to evolve towards the best versions of ourselves. What has to be also stressed is the fact that with AEI we will have the opportunity to know how to lead people to information that is genuinely crucial for them and their nations. AEI will guarantee better media and, in turn, more democratic politics. AEI will also stand for encoding consumer intelligence – we will have the possibility to check our decisions on an AEI machine. The machine will inform us how we can be persuaded and motivated to purchase goods and services, taking into consideration our true needs. Finally, the relationship with the emotional intelligence machines will provide us with access to the friend’s wisdom when we would most need it.

In my opinion, the biggest obstacle here will be connected with the broadly defined aspect of trust. People are starting to engage in the relationships with machines, highly advanced devices that currently help us in setting and achieving specified goals, but also in producing and analyzing the results, all preformed using human-like feedback. Furthermore, what also has to be emphasized is the fact that the research has shown that even though people prefer robots which seem capable of conveying some degree of human emotion – facial features, interaction, human-like gestures – they are repulsed by robots that look and move almost human-like. What will be crucial in the AEI case is the broadly defined balance – adding human characteristics through AEI design is only appealing so long as the technology maintains its honest, outwardly robotic qualities. All things considered, both the software and hardware are taking on human tendencies what has a significant impact on the transformation, on the development of relationship between people and machines. Human-like gestures, the whole interaction helps to establish the sense of trust. People tend to seek for the acceptance and validation; feedback from the machines, however it is crucial to remember that this emotional interplay may be only accomplished with the very real power of artificially intelligent technology.

What if machines would take over and become versions of very devious, powerful people?


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Digital Business Era: Strategic Technology Trends for 2016 / Part I

Reading Time: 2 minutes

is moving at a breakneck pace, constantly evolving and developing.  We, guys, can see it easily by comparing our lives today with even a couple years ago. So do the businesses. Social, mobile, analytics, cloud, and increasingly the Internet of Things have become driving forces behind the rapid evolution of digital businesses. In this blog I will focus on the technology trends which are waiting for us in next year. We will be able to see the shift from today to tomorrow. I was inspired by Gartner forecasts, the world’s leading information technology research and advisory company. Let’s have a look in a nutshell :


  • Trend 1 – The Device Mesh
    Under the device mesh ( aka network device) are meant multiple device terminals that allow people to access information and applications or interact with each other, within commercial and government organizations. These devices include smartphones, portable electronic gadgets, consumer and household electronic devices, vehicles and all kinds of sensors.
  • Trend 2 – Advanced Machine Learning
    Deep neural computer networks will go beyond the classical computer systems and will be used to build systems that can learn and perceive the world independently and autonomously. The growth and complexity of data sources, data classification will make manual analysis uneconomical and unrealistic. Through neutron networks these tasks can be automated.
  • Trend 3 – Autonomous Agents and Things
    Machine learning will lead to a rise in the popularity of intelligent machines – robots, autonomous vehicles, virtual personal assistants and smart advisers who will work independently or semi-autonomous. Predecessors of these machines today can be considered as such as Google Now, Microsoft Cortana and Apple Siri. Their development will play a leading role in the industry, although the development of physical machines – electro-mechanical robots and others…also will continue.”Over the next five years we will evolve to a post-app world with intelligent agents delivering dynamic and contextual actions and interfaces,” said Mr. Cearley. “IT leaders should explore how they can use autonomous things and agents to augment human activity and free people for work that only people can do. However, they must recognize that smart agents and things are a long-term phenomenon that will continually evolve and expand their uses for the next 20 years.”
  • Trend 4 -Internet of Things Architecture and Platforms
    It’s not the first year when researchers indicate the Internet of Things, as one of the most important trends. However, they are now more clearly formulated, what exactly will happen. It is expected that 2016 will be the year of development of platforms for new technology. However, due to lack of organisation vendor standardisation of such platforms will flow quite difficult until 2018.
  • Trend 5 – Adaptive Security Architecture
    Network devices and intelligent machines will require significant computing resources, resulting in a proliferation of high-neuromorphic architectures based on field programmable gate array (FPGA) and graphics accelerators. The new architecture will help achieve the computing speed, measured in teraflops.

In my next post I will give you the list of next 5 upcoming trends for 2016.

Stay tuned! Thank you
Inspirations & Sources: 


What is LTV?

Reading Time: 2 minutes


What is LTV?

LTV (Lifetime Value) or CLTV (Customer Lifetime Value) – is the total profit received from a client during all the time while he/she is using the service.

Simplified example of LTV calculation:


  • Cool Master Degree Program is free;
  • The only cost of Cool Polish University is marketing to attract new students;
  • The only profit from students – their fails on exams;
  • Fail fee is PLN 610.

Some Cool Master Degree Program of some Cool Polish University lasts 2 years. The program is free, however if you do not pass an exam, you will have to pay PLN 610. So, if during these 2 years of free studies you will not pass 2 exams, you will have to pay PLN 1220. PLN 1220 is your LTV for Cool Polish University i.e. total profit received by Cool Polish University from you during all the time of your free Cool Master Degree Program.

Why is it important to know the LTV and CAC (Customer Acquisition Cost)?

LTV – is one of the most important metrics in the business (especially e-commerce) even if your business is registered as non-profit organisation. The majority of companies die because of the fact that the cost of attracting of a new customer (CAC) “outweighs” the lifetime value of the customer (LTV). Most such situations happen due to the fact that entrepreneurs are focusing on the transaction and often forget about the experience that the customer receives after conversion achieved (retention rate).

Simplified example of CAC and LTV calculation:

Assumptions: the same as in first case.

The marketing department of some Cool Polish University spends certain funds on marketing to attract new students. Let’s assume that marketing department spends PLN 200 on average to attract new student. This is our CAC. Let’s assume that 20 students were admitted to Cool Master Degree Program. So, the total budget spent to attract new student is PLN 4000 – total CAC. The question is how many students have to fail the exam during the 2 years’ master program to cover these costs? It’s simple. 4000/610. So, approximately 6 fails will cover costs for marketing of Cool Polish University. Of course the example above is extremely simplified. But the main idea here is to understand that LTV has to be higher than the CAC. Otherwise the business model is going to fail like these students on exams 🙂

Why LTV is so important?

LTV can help you:

  • Identify the ROI (focus exactly on the channels that will bring you the best customers).
  • Improve customer retention strategy.
  • Increase effectiveness of communication with the customers.
  • Improve behavioral triggers (understand why your customers pay you).
  • Improve productivity of customer support.
  • Focus your time on the special attention to the most valuable customers.

In my next post I will give you several approaches to calculate LTV and they will be more complicated.


Thank you.


Names, places and incidents either are products of the author’s imagination or are used fictitiously.

Privacy in the Age of Big Data

Reading Time: 4 minutes

In this post you will find an outline of the advantages and disadvantages of Big Data concerning the individual’s privacy. The article stresses the contrast between the merits and risks of Big Data in a short compilation, thus allowing the reader to get a clear picture of the current issues.

 Does the consumer need his privacy? Shall we, as consumers, adjust to the loss of at least some part of our privacy and settle for more comfort and better commercialized offers instead?

Privacy issues have always been raised in discussions over human rights and freedoms, but with the appearance of the Internet these concepts have slightly changed their meaning, and with the emergence of the Big Data they need to be revised once again by society.

First of all, the question arises what should be classified as personal information and where is the boundary line between privacy and publicity. Every day we buy coffee at Starbucks, paying with a credit card, post new photos to Instagram and fleeting thoughts to Twitter, leaving behind a huge amount of information imprints. Their processing with the help of advanced analytical tools allows us to make new discoveries and explore previously unknown nature of things, however, just as the Internet had once united people, thus threatening their privacy, we should ask ourselves, whether the Big Data will exacerbate this problem, or will become a springboard to a better future.


Before answering the question about the possible repudiation of the privacy for the sake of comfort, I would like to consider positive aspects of using the Big Data and our personal information in everyday life. In my opinion, they are as follows:


  1. Increase of stability. Analysis of large amounts of information allows companies to rely on more accurate forecasts when doing business, affecting all aspects of it, from finance and marketing to recruitment. Ultimately, handling more precise information leads to increased stability of national economies. Perhaps global financial crisis could have been avoided if financial institutions had checked their customers’ backgrounds more carefully when issuing loans. For example, analyzing social networks of customers in Facebook, banks would be able to make a conclusion about their surroundings, and analysis of their phone bills would allow making judegments regarding the efficiency of borrowers.
  2. Disease and crime prevention. Access to medical records of patients would allow detecting disease outbreaks in advance by analyzing patients’ symptoms. Thus, Google Flu Trends works successfully in this direction by analyzing users’ requests about flu symptoms. As for the crimes, banks, using data of their customers’ transactions more carefully, can identify those suspected of money laundering and other financial frauds.
  3. Moving from general to specific. Processing large amounts of personal information allows obtaining concrete results on a number of parameters, avoiding prejudice to the rights of people who accidentally get into statistical sample. For instance, getting more information about the lifestyle of a client, an insurance company will be able to offer him/her a better deal, although before this customer would have to pay a standard price.


Apart from the benefits that the Big Data and privacy refusal can give us, their use is associated with enormous risks and the caused damage might be irreparable. These risks, in my mind, might be as follows:


  1. Obsession with data. I believe that the widespread reliance on the Big Data and private information poses a latent threat, because with the increasing accuracy of the data processing tools their popularity will grow as well that eventually may lead to their use in inappropriate situations.
  2. The world is replete with examples of how monopolization of the entire economic sectors ends, one of such is the story of Standard Oil Company, which monopolized the whole refinery. Since the data in the information society is the same as the fuel in the industrial one, governments need to be vigilant and facilitate the creation of competitive environment in the field of data processing, avoiding the appearance of monopolies.
  3. National Security. Recent revelations of Edward Snowden about US government spying on its citizens caused a storm of criticism around the world. Undoubtedly, this issue deserves discussion, but the potential leakage of personal data of citizens can do much more damage to national security than the national governments shadowing their subjects.
  4. Maintaining privacy. Such methods of preserving confidentiality as consent to the processing of data, refusal of users to participate in the data collection or removal of already processed information gradually lose their effectiveness and jeopardize privacy of many users. Prolonged lack of adequate mechanisms of confidentiality control only exacerbates the problem by allowing uncontrolled use of received information, avoiding consequences.


Having considered the pros and cons of the partial refusal of privacy, I can conclude that each of us, sooner or later, should give up a part of the personal information for the common good and comfort. The Big Data offers great opportunities to humanity provided their rational use; otherwise they become a tool of repression and coercion, causing irreparable damage to people, and therefore, like any other tool, created by man, require careful handling and control.

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