Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

English Grammar Master - English Grammar Master app is an offline grammar guide that allows users to master their English grammar skills by learning about a large number of topics and techniques.

Drops - Visual language learning.

EssayToolBox - EssayToolBox features lots of tools that checks any writing for grammar and spelling mistakes, detect plagiarism, brainstorms ideas, generates summaries and conclusion, counts words, and much more.

Clozemaster - Learn a language through mass exposure to useful vocabulary in context.

English Essays by Urva Apps - English Essays is an app by Urva Apps that contains features so you can access a complete guide to learn about how to write an essay by using professional tips right at your fingertips.