TEAN - Calculus!

In-app purchases
Content rating
Everyone
5+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Learning mental arithmetic can be effective and fun!
TEAN offers you the following didactical approach:
- the four base operations of adding, subtracting, multiplying and dividing with problem classes used by the Swiss public school system* (see https://portail.ciip.ch/per/disciplines/5 - MSN 13 and MSN23)
- each operation has 8 levels of increasing difficulty adapted to the age of the user
- research *(see https://pmc.ncbi.nlm.nih.gov/articles/PMC11943480/) has shown that writing the result of the operation with your hand or finger instead of typing it in provides you with superior learning and memory retention.
- a streak of 10 good answers within a certain time provides you with an award
- awards can be used to unlock additional levels
- the user activity in the different levels can be tracked easily
- the user progress in learning mental arithmetic is tracked by an 8-level score symbolized with ocean icons and calculated from the awards earned at the different levels.

* TEAN sàrl is a private company that is neither affiliated nor associated with any swiss or foreign public service or goverment entity.
Updated on
May 16, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Committed to follow the Play Families Policy

What’s new

first public release