SUBITZE
Subitizing brain game & cards
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
No ads, no in-app purchases, no sign-up. Spot how many blocks are on screen in a single glance. Now with Main Stage 3D: count stacked cubes at a glance.
Know it before you count.
Blocks appear. Type how many on the keypad. The faster and more accurate you are, the more stars you earn.
SUBITZE is a brain game built from ten of those moments per stage. No ads, no in-app purchases, no sign-up.
As stages progress, more blocks appear, and every correct answer earns XP. One round takes well under a minute, whenever you have a spare moment.
PLAY
- Main Stage: start on EASY, and it gets harder the further you go
- Main Stage 3D: count stacked cubes at a glance
- SMASH: an arcade mode with an anonymous daily ranking
KEEP GOING
- Clearing a stage may drop a card. Rare Foil cards, too. Collected cards fill the Card Book
- Daily Missions and streak bonuses
- Level up, and the game gets a little more forgiving
- And beyond the final stage, a few secrets remain
WHO IT'S FOR
- Anyone who wants to sharpen number sense, the skill that comes before arithmetic
- Kids playing with numbers
- Anyone looking for a brain game that fits into a short break
From counting numbers to seeing them.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Share your SMASH result as a replay video. Anyone who opens it can watch the run and start playing right away.
• Tap Replay on the result screen to watch your own game.
• Minor fixes.
The developer, HIROKAZU KATAOKA, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HIROKAZU KATAOKA
- Size
- 18.3 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Hirokazu Kataoka
