I'm back!

It has been some time since I last posted here or published an update to one of my Android Apps. This has a lot to do with my studies in Software Engineering as well as a new job I got.

But now, I'm back to continue my personal projects. Of course, the main focus will be on Function Inspector as it is by far the most successful and most complex project for now. Function Inspector LITE, for example, has been downloaded almost 80,000 times...

Yesterday, I published an update fixing the issue you can see on the screenshot I got from a user. This occurred on Android Jelly Bean for the first time, I'm sorry for any inconveniences ;)

So there is a lot to do. This is my To-Do-List for Function Inspector:

• Refactoring: Most of the code is older than a year, and I'm pretty sure my programming skills have improved since then ;)
• Performance improvements and bug fixes: Some parts of the app could probably be optimized.
• Design: The design of Function Inspector seems kind of outdated and does not fit into the new Android 4.x design. For example, I could get rid of the menu button.
• Tablet support: The Function Inspector UI works fine on tablets, but it could certainly be optimized.
• New functionality? Here, I'm hoping for some user suggestions.
• Marketing: As satisfying as download numbers are, there are many people out there that could probably need this app.

So as you can see, it won't get boring!

Google adding statistics to Android Market

Today, I have the pleasure to report on a long anticipated feature of the Android Market:
Developers are now able to view statistics of their apps!

For now, this is number of installations over time, OS, Device Country and language.

As a developer I find this information very useful and hope that Google will add even more features, especially tools that allow me to contact users that give a one-star rating and comment "doesn't work"! -.- As Google is one of the leading companies (or THE company) that is about collecting and analyzing data and making live easier, I think there is still some potential ;)

For this blog, this change may lead to some more frequent statistics reports as I haven't written one for a very, very, very long time......

2000 active installs exceeded!

After I published an update for Sudoku Solver yesterday, installation numbers, again, went up significantly. Those are my statistics right now:


IntegralCalc:
- 879 active installs (42%)
- Rating: 3.56 (9 Ratings)
- Admob: ca.26,000 impressions; CTR: 0.14% last 30 days

Sudoku Solver:
- 1123 active installs (52%)
- Rating: 4.28 (18 Ratings)
- Admob: ca. 49,000 impressions; CTR: 0.21%

ProbabilityCalc:
- 132 active installs (38%)
- Rating: 2.5 (4 Ratings)
- Admob: ca. 6,000 impressions; CTR: 0.30%

Well, as you can see, my last app, ProbabilityCalc, is not THAT successful^^ I've got one comment that says that the concept is hard to understand and it seems unfinished. Please email me if you have any concrete suggestions ;) But, honestly, I'm not working on improving it that much (I have not published any updates yet) because i don't consider it to be very important. I'm rather working on making my fourth app ;)

Sudoku Solver is a huge success. I'm very pleased with the download numbers, the ratings and the resulting earnings ;) Still, I have some improvements that I want to make step by step...

IntegralCalc is kind of finished^^ I have no recent bug reports and I think that it has all the functionality that you could possibly put into an integral calculator ;)

1000th user!

Yesterday, I exceeded the 1000 active installs with both Apps combined which seems like a good occasion to do a new statistic!

IntegralCalc:
- 606 active installs (50%)
- Rating: 3.375 (8 Ratings)
- Admob: ca.20,000 impressions; CTR: 0.26%

Sudoku Solver:
- 414 active installs (62%)
- Rating: 4.0 (8 Ratings)
- Admob: ca. 18,000 impressions; CTR: 0.21%

Even though IntegralCalc's impressions and CTR are slightly higher than those of Sudoku Solver, I already gained more money with Sudoku Solver. I'm also proud to announce that I already earned more that $5 ;)
IntegralCalc still does not seem to work for some people, but I'm unable to understand the error reports or finding the bug :( So if somebody gets an error, please give detailed information about your phone model, Android version and what you did before you got the error!
Future updates will improve the design of the Apps in order to make them more attractive. Solving the Sudoku puzzle I posted earlier could also help improving Sudoku Solver's speed.
Finally, I am planning on publishing my third App which, of course, is top secret ;)

Android Programming record

Almost four weeks ago, I published my first Android App, IntegralCalc. Five days ago, I published Sudoku Solver. Today, I want to present some numbers:

IntegralCalc

- 328 active installs (50%)

- Ratings: 3.3 Stars (6 ratings; received only 1, 4 and 5 stars)

- AdMob: ca. 9000 impressions, CTR: 0.31 %

Sudoku Solver

- 139 active installs (67%)

- Ratings: 3.8 Stars (5 ratings; received only 1, 3 and 5 stars)

- AdMob: ca. 2400 impressions, CTR: 0.34 %

So all in all, I think both apps started well and their download numbers are increasing steadily. Apparently, IntegralCalc does not work with all handsets which caused two 1-star-ratings. I also have error reports that I have not reviewed yet. Sudoku Solver had a bug when it was published which I already fixed, but it is the reason for one 1-star-rating^^