This is an application-trainer for learning french grammar, which allows you to learn of correct usage of prepositions interactively.
The app contains a lot of examples of correct usage of prepositions.
Testing and verification of learned words is organized as easy and intuitive game . It contains a user-friendly rating system with 'stars' that will help you to analyze your level of knowledge.
When you start learning all grammatical constructions do not have any stars. Answering correctly it gets 1 star, otherwise it looses one.
The same construction is not available for learning immediate after previous learning. This will help you to remember all of them more efficiently.
Préposition construction is available after last learning - it it has no stars - 1 hour after last learning - with one star it will be available 12 hours after - with 2 stars it's required 24 hours of pause - 3 stars need prepositions require 2 days of waiting - 4 stars are available 10 days after - finally, 5 stars never becomes available as they are considered as learned definitely. This prepositions will not be showed in learning anymore.
This app is free and can work in offline mode. It doesn't contain any advertisement. Good luck in your learning and training ;)