We, ffab0 (location: Berlin Germany, Co-Founders: Keisuke Hoshino, Yuto Kitakuni), has released "Pocket Programming" which helps beginners of programming to fix the knowledge they learned in the tutorials on October 1st, 2015 on Google Play Store.
No PC! No writing code! You can learn programming anywhere with relaxing on the sofa, in the train, break time at school.