AstroCalcul Fun Mental Math

Is your child stuck on certain multiplication tables? AstroCalcul detects this automatically and offers targeted revision, wrapped in an addictive space adventure. No ads, no subscription. Made by a dad, to help kids learn while having fun.

AstroCalcul helps primary school children improve in:

Multiplication tables
Targeted revision
Mental maths
Addition and subtraction
Division

The app adapts to your child's level with several difficulty levels and a smart revision system. Professor Robi teaches addition, subtraction, multiplication and division through several methods, in a fun and educational way. He can also explain step by step the exact calculation your child is stuck on, with "Explain my calculation".

SMART REVISION MODE

AstroCalcul automatically analyses results and identifies the concepts that need more practice:

Personalised revision
Targeted practice on the least mastered tables
Clear view of progress
12 collectible Revision badges

EXPLORE THE GALAXY

Every day, your child progresses through a space adventure:

Travel from planet to planet, from the Sun to Pluto
Discover the solar system, with a fact to learn at each step
Once the solar system is explored: set off on a new journey to discover moons (the Moon, Phobos, Europa, Titan and many more)
Daily rewards and visible progress in the explorer's logbook

DAILY STREAK

A flame that grows with each consecutive day of play
Bonus avatars to unlock based on consistency
A broken streak can be restored with AstroCoins* earned by playing

CUSTOMISABLE PROFILE

Up to 15 avatars, several of which can be unlocked
First name and avatar editable at any time

PROFESSOR ROBI

An educational assistant who explains addition, subtraction, multiplication and division with several visual methods suited to children. With "Explain my calculation", he also helps with the exact sum your child is stuck on.

EDUCATIONAL MINI-GAMES

Astro Target
Fix the Rocket
Hide and Seek with Robi
Rebuild the Calculation
The Space Market

MOTIVATION AND PROGRESS

Collect badges
Earn AstroCoins*
Print badges
Detailed progress history

DESIGNED FOR FAMILIES

No ads, no subscription
Works 100% offline
Up to 4 child profiles
Secure parental controls
Customisable notifications

GET STARTED FOR FREE

Freely access addition, subtraction, multiplication tables, mini-games and history.

Upgrade to AstroCalcul Premium (one-time purchase, for life) to unlock division, the personalised "Explain my calculation" help, advanced levels, the full Revision mode and multiple profiles.

*AstroCoins are an in-game currency, earned by playing — no real payment is linked to them.