Free App to have fun with friends

[val_dev]

Hello,
I am in engineering school and I decided to do a project to learn Android programming.
It's an app to have fun with friends by sending a massive number of SMS.
I want to progress in the world of Android programming so if you could give me advices to improve my app and my programming level, positive or negative, it would be very nice.
Thank you in advance

Link : https://play.google.com/store/apps/details?id=com.val.free1&hl=fr
PS : Sorry for my bad English

 

[Unforgiven]

I moved this to the App & Game Announcements forum where folks looking for new apps can find it.

Developer Announcement Rules

Good Luck with your app.