Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Boost for reddit - Meet Boost – a beautiful reddit app designed to make browsing reddit easier.

Eduflow - Digital learning that actually teaches students something

Infinity for Reddit - A Reddit client on Android written in Java.

Kialo - Kialo is the platform for rational debate. Empowering reason through friendly and open discussions.

RedReader - RedReader - An unofficial open source Reddit client for Android.