A free app for Android, by Smart Quiz Apps.

The free English spelling and grammar game from Rava Kids is an educational learning app that teaches English spelling. It also helps you improve your English grammar and vocabulary. The app includes more than 120 words that are divided into five levels. The first level is the easiest, and the last level is the most difficult. There is also an option to enable/disable the sound. There are two different sound options. You can listen to the English pronunciation or read the English transcript. 

There are four main categories of words: nouns, verbs, adjectives, and adverbs. There are also two subcategories of each: singular and plural. The app has an option to enable/disable the sound for each word.