Today, Auto Respond surpassed 1,000 total installs between the free and pro version.
Sure, some of those may be people who used the free for a while, and then switched to the pro after using it. But still, it's a good day.
Only 160 of those installs are currently STILL installed. That's a 16% retention rate, which isn't too bad considering the number of people using the Play Store and the number of apps available.
Tic-Tac-Toe, on the other hand, has 172 installs and 57 current users. This shows the difference in the quality people expect from their games vs. other apps. I think Auto Respond is a MUCH higher quality app than Tic-Tac-Toe, yet I have a much higher retention rate for Tic-Tac-Toe. At 33%, the retention rate is over double.
On the other hand, people have not left any reviews on Tic-Tac-Toe. (The only review is actually from my mother. Thanks for that mom!) Auto Respond doesn't have quite as many reviews as I would expect from the wide user base, but it definitely has a higher rate of ratings/install.
Auto Respond free: 1%
Auto Respond pro: 15%
Auto Respond Free: 6%
Auto Respond Pro: 37.5%
What does all of this tell us? Basically, games are where it's at for mobile development. Even simple games, like Tic-Tac-Toe. But people don't want to spend the time to rate games, which is why so many games try to coax you into it by offering something in return for rating their app.