Ultimate Tic Tac Toe

So I was reading an answer in Quora on how to make a Tic-Tac-Toe interesting. It was a cool concept. So I thought of downloading an app for this in Android. But unfortunately I couldn't find any app having this feature and if it had, it was a paid app. So, I thought I should be doing this app for the sake of humanity! So, after working on it non-stop on a weekend, I was able to complete this app and publish it on the Google Play.

Download it at https://play.google.com/store/apps/details?id=com.asb.ttt.ultimate

Some of the screen shots of the app: