Grammarly Keyboard — Type with confidence

While pretty much any virtual keyboard provides some form of spell checking, most of the time it’s just superficial and related only to the words. The Grammarly Keyboard aims much higher than that and wants to offer a complete suite of corrections.
 
The Grammarly Keyboard provides all sort of suggestions ranging from commas to missing articles and verbs, and even to more complex such as split infinitives. It works in basically any field that accepts text input, so it’s great for email, SMS, chat apps and so on.
 
The explanations are clear and easy to understand, but the great thing about the keyboard is that it helps you learn from your mistakes so that you can avoid them altogether later.