English grammar for beginners - EnglishTrackerKids

A simple innovative game for a good start in English grammar. Learn effectively and stress free.
Advanced users and false beginners who already have a good vocabulary bases may opt for Englishtracker Advanced which is also available on the App Store.
THE RULES OF THE GAME
The application shows you short sentences with or without mistakes. If you identify a mistake, you point it out by clicking on the word. A small robot pops up and comments on your correct and incorrect answers in an illustrated manner. If your answers are wrong a simple and an accurate explanation will be given to you. You can then listen to the sentence and read its translation.
Repetition is the key to learning. Therefore, 1 to 5 stars are associated with each level in order to encourage you to replay them and get 5 stars without making any mistakes.
A GAME WHICH ADAPTS TO YOUR KNOWLEDGE
Each level has 5 rules to remember. An algorithm automatically determines the rules which you may already know or not know, and chooses the type of mistake at each step to show it to you, giving priority to those that you have not yet acquired. When the algorithm determines that you have mastered a rule, you earn a star.
CONTENTS
Activity is divided into twelve levels of increasing difficulty both in terms of grammar and vocabulary and it allows you to study 60 illustrated rules with 1200 examples. The total duration to complete all levels on average is 20 to 30 sessions of 5 to 10 minute games and it depends on your level.
I WOULD LIKE TO TEST!
This version allows you to evaluate the first four levels without any limitations on the number of uses. This lets you easily check whether the application meets your needs.
TRANSLATED EXPLANATIONS IN DIFFERENT LANGUAGES.
The rules are translated into English, French, Spanish and Portuguese by human translators (no automated translations).