About this app
This application is the digital version of the 450 exercices collection. The app contains all self-training interactive tasks. Access to self-correction, score and answer keys are available depending on type of tasks. A total of 450 task each level. The inApps contain many resources medias; a strong and stable wireless connection is required throughout the initial download.
Latest release
What’s New
Fixes concerning downloading the issues.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 14, 2026 · 9:15 AM Free
Screenshots
