ChineseSkill

Learn Chinese with simple tasks and games

Drops: Learn Russian

Excellent app for learning Russian with Android

Memrise

Learn languages with a revolutionary method

EWA

Learn to speak new languages with characters from books and movies

Lingomate

Learn Chinese on your mobile

Cake

Simple system to learn English with videos

Exam Lift

Prepare for your English exams

Drops

Learn 35 languages with games and pictures

Wlingua Spanish

Learn Spanish once and for all

English Grammar Test

Improve your English grammar

Lingutown

Go ahead and learn any language

Wlingua English

Improve your English from your phone

italki

Learn languages with native teachers

Du Chinese

A pocket-sized tool for learning and translating Mandarin Chinese

Kana Town

Learn Japanese in a pleasant and efficient way

ELSA Speak

Improve your English with this assistant

One Booster

Optimize your Android's performance

Avast Cleanup

Clean your smartphone and optimize how it works

Swapper & Tools

Get full Android control with these tools

Clean Master

Cleaner, optimizer and antivirus in one

Booster Master

Exploit the maximum potential of your Android

CCleaner

Android version of the most famous cleaner

GLTools

Optimze the graphical performance of your GPU

SD Maid

An app to thoroughly clean your phone

Nova Cleaner

Optimizes the performance of Android

GearUP

A feature-packed accelerator for mobile games

Glary Utilities

Optimization app for Android

Package Disabler

Uninstall pre-installed apps

Greenify

Improve the performance of your Android

L Speed

Save battery on your device whilst you're playing

Mobileuncle MTK Tools

Toolbox for MTK smartphones