Company Adams Languages created these great apps:
The Ultimate German Phrasebook, Speak German Instantly, Learn Arabic Easily, Best Independent London Coffee Shop Cafe Guide - Adviser Map, #NoZoom-Fix your Wallpaper and Set Full Pictures as your Custom Background Lockscreen, Balls In Box, Wallpaper FX - Blur and Color Your Wallpapers & Backgrounds, Space Vortex!, xSounds - Best vine soundboard, and others..
