The Importance of a nice GUI

The first GUI of the "Wiener Würstel-Kompass"

It’s now more than a year I have published my app “Wiener Würstel-Kompass”. I developed the app under time pressure because I wanted to submit it to the “A1 Challenge for Apps 2010”. As a result the first GUI was very ugly.

After some months I found the time to redesign the GUI. I tried to pimp it a bit. Unfortunately I’m not an artist. All I can do is programmers art ;-). I’m sure there is still a lot of room for improvement but in my opinion it looks much better than the old GUI.




Wiener Würstel-Kompass Screenshot

The redesigned GUI.

And luckily I’m not the only one with that opinion. Look at the diagram below. It shows the number of active installs over time. Guess when I published the app with the new GUI!

Right! (or maybe not… I don’t know what you have guessed). It was published in the end of May.

Before the app was released with the new GUI, the active installs stagnated. After the release the number of active installs increased noticeable.

My conclusion: the GUI design is a very importand part of an app. It should definitely not be undervalued.


Active installs over time

Android Report #1

This is the first posting of a series where I will share my Android stats of the previous month with you. I will try to post this stats periodically every month.


Apps in the Market: 2
Total installs: 2377 (+211)
Active installs: 534 (+46)

AdMob Requests: 1058
AdMob Impressions: 719
AdMob fill rate: 67.96%
AdMob CTR: 2.23%

First posting… what happend so far?

Ok, this is my first posting on my new blog. Let’s start:

In my first posting I want to give you an overview what happend with my first published app on the Android Market so far. The app is called “Wiener Würstel-Kompass” and currently it is available in German only. I live in Vienna and wurst stands are very popular here. So my idea was to create an app which directs the user to the wurst stand next to him/her. Its simple: a compass points in the direction of the nearby cheese kransky.

Wiener Würstel-Kompass Screenshot

After walking through Vienna for days to record the locations of food stands, I published the app in the end of July 2010 in two different versions. One paid and one free version. At first the free version was limited in functionality without ads. The paid version included about 130 wurst and kebab stands while in the free version there were about 20 stands located in the first district of Vienna. In July 2011 I decided to provide full functionality in the free version and include AdMob ads in return.

The app already had some successful moments. It made the 10th place at the “A1 Challenge for Apps” and was mentioned on some websites (e.g.,,


As other bloggers I want to share the Market stats of my Android apps. So here they are:

Apps in the Market: 2
Total installs: 2367
Active installs: 529


Keeping in mind that this numbers are generated within the time from August 2010 till now, they are very low (about 170 downloads/38 active installs per month). I think there are two main reason for the very low numbers: The app is a local app and therefore there is just a limited market. It’s not interesting for people outside of Vienna. Probably the second reason is that I have not invested a lot of time advertising the app.

Currently I’m working on an app that is not limited to a single city in the world. So hopefully my future reports show better numbers ;-).

Feel free to post your experience, suggestions or whatever you want in the comments below.