Grammarly - Clear, effective, mistake-free writing everywhere you type.
FlashAcademy - The language school in your pocket! 🎓
GrammarChecker.net - Grammar Checker is an online spell check tool. It effectively works on English sentence correction, Punctuation mistakes of 28 other different languages.
Pronounce Names - How to correctly pronounce people's names
LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.
BRAINYOO - Easy cross-platform learning with flashcards.