Math Grid: 100 Squares
Fast, fun times-table drills
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Math Grid turns the classic Japanese "hyakumasu keisan" (100-square calculation) into a joyful daily habit. One operation in the corner, numbers across the top and side — your child fills every square, beating their own best time.
BUILT FOR AGES 5-7 (AND UP)
- Four operations: addition, subtraction, multiplication and division
- Grid sizes from a friendly 3x3 up to the legendary 100-square
- Auto mode quietly adapts the difficulty: two strong rounds move up a level, a tricky day gently adjusts down - never framed as failure
- Tricky facts quietly reappear in new grids until they are mastered
FRIENDS AND LEADERBOARDS
- Add a friend with a simple friend code (you both accept) and compare your weekly and all-time stars
- See who is online with a friendly presence dot
- Family leaderboard: star champions and fastest fingers
BATTLE A FRIEND
Race a friend on the very same grid:
- Challenge an online friend into a live battle with a single tap
- Online Battle: open a room with a 6-digit code and play in real time. If no one is online, a friendly practice opponent steps in.
- Code Battle: finish a round to get a secret code you can send to a friend so they play the identical grid offline - fastest time wins.
THIS WEEK'S CHALLENGE
Each week features a friendly challenge - a trickier operation or a bigger grid to give a go. Try it and earn extra stars for having a crack. A gentle nudge to explore the harder squares, never a chore, and never any pressure to keep a streak.
MADE FOR FAMILIES
- Up to 6 player profiles, each with their own avatar, colour, progress and streaks
- A practice calendar that glows brighter the more stars you earn
- Parent dashboard (behind a grown-up gate): accuracy charts, level overrides, tricky-facts list
PRIVATE BY DESIGN
Your child's progress stays on their device. Math Grid has no ads, no third-party analytics, no tracking and no account. The only data that ever leaves the device is for the optional online features: an Online Battle shares just a first name and avatar to run the live match, and the Friends feature shares a first name, avatar, colour, star counts and a simple online/offline status - only with friends you have both accepted. Purchases, external links and sharing sit behind a parental gate.
FREE TO PLAY
3x3 and 4x4 grids, all four operations, Auto mode, battles, friends and 3 profiles are free forever. Math Grid Premium unlocks 5x5 and the full 100-square, manual level picking and premium avatars. The Family plan adds up to 6 profiles with Family Sharing.
Languages: English, Japanese, Chinese (Simplified), Korean, Spanish, Portuguese, French, German.
Terms of Use (EULA): https://emilelabs.github.io/mathgrid/terms
Privacy Policy: https://emilelabs.github.io/mathgrid/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• A freshly redesigned Premium screen — clearer plan comparison and a more polished, premium look.
• Behind-the-scenes performance and stability improvements.
The developer, Reimi Nishida, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Reimi Nishida
- Size
- 9.2 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Made for Ages 6–8
This app has an age rating of 4+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Parental Controls
- In-App Purchases
Yes
- Premium Annual $24.99
- Premium Monthly $2.99
- Family Annual $29.99
- Copyright
- © 2026 Emile Labs

