Languages
Language learning software is definitely helpful, and a lot of people have already improved their skills and vocabulary with such software. If that's what you have been looking for - take a look at applications from this category and download instantly.
SmartCAT
Virtual Teacher Screensaver
Declans Korean Dictionary
Fluency Now
Declan's Arabic FlashCards
RealSpeak French Virginie Voice
IdiomaX Translator
Polyglot 3000
English Romanian Translator
Easy Learning - English
appTranslator
Translator Boomerang
across
PTF Translate
Learn Chinese and Speak Mandarin
MultiTranse Oriental
Shibboleth
English (UK) + Pali
Chinese Tutor Software
Spanish Phrases Buddy
FlashGlyph
NJStar Chinese Pen
Letter Sounds
Ergane
Fadi's Arabic Tutorial
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.