Wickr - Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
GradeProof - Proofreading with Artificial Intelligence
Confide - On the off chance that you need to get your messages private and encoded then utilize Confide that will fill in as your own and classified courier.
Proofree - Free proof-reading by humans.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Analyze My Writing - Analyze My Writing is an online text content and readability analyzer.