LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.
CiraSync - CiraSync is a program that syncs and shares office 365 GAL contacts and calendars to smartphones.
Grammarly - Clear, effective, mistake-free writing everywhere you type.
Socialsuite - Impact measurement with measured outcomes
Gramlee.com - Online grammar check, proofreading and copy editing services.
Clariti.app - Clariti is a team communication app that uses Artificial Intelligence to combine emails, chats, documents, calendar events and feeds on the same topic, in rich context-based Conversations to ensure your communication stays focused & organized.