2-1 Downloads & Revenue2-1 · App Store
Not in any tracked top chart right now.
Updated 7 Nov 2026 · rankings refresh through the day
Developercreasoft.de
CategoryEducation
Price59,000.00 IDR
Released
Rating★ 0.0 (0)
Version1.1.4
Age rating4+
First seen by us
30 Sep 2026
30 Sep 2026🚀Now shown next to Sumar y restar para niños 123, Eggy Subtract to 20, Squeebles Maths Race +5 more📦Updated to version 1.1.4📦Updated to version 1.1.3🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 9 events
- ✏️2-1: app got bigger50 MB → 58 MB (+14%)
- 🚀2-1: now shown next to Sumar y restar para niños 123, Eggy Subtract to 20, Squeebles Maths Race +5 morethe store's “similar apps” for it changed: who it's seen as competing with
- 📦2-1 updated to version 1.1.4• The rhino now dances on the trophy page.
• Small fixes and improvements. - ✏️2-1: app got bigger43 MB → 50 MB (+18%)
- 📦2-1 updated to version 1.1.3• The zebra now dances on the trophy page.
• Small fixes and improvements. - 📦2-1 updated to version 1.1.1• New settings for each player: tap the gear next to the name on WHO IS PLAYING. Choose how often tasks come back, how many different tasks a game holds, and which sounds play.
• New quiet sounds for the classroom: SOFT and WOOD.
• After game 9, the trophy page celebrates with a cup, sparklers and fireworks.
• Small fixes and improvements.… more - 🆕2-1 first spotted by AppInsider#57 in Top Paid · All Apps · Saudi Arabia
- 📦2-1 version 1.1.0The first update since 2015: 2-1 has been rebuilt for today's iPhones and iPads. It still works entirely without words, so children of any language can use it.
• Fits every screen. The game fills the display on all current iPhones and iPads, in the right proportions.
• Eight stages, from BEGINNER to INSANE. Each stage has its own nine games, its own equations and its own cup — from the green cup up to the diamond and the amethyst one.
• Several children can play. Every player has a name on the start screen and keeps their own progress, and easy, medium or hard can be set for each child.
• Better practice. The app now keeps a record for every equation and brings back what is not yet safe, so weak spots come up more often.
• The animals move. All nine animals walk across the meadow, and the counting row shows silhouettes and bushes instead of red crosses.
• A real celebration. Confetti, balloons, sparklers and rockets when a cup is won.
• Small things. A parental gate in front of every link that leaves the app, a reset that really clears everything, a new sound for a right answer, and a new app icon.… more - 🆕2-1 released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
2-1 at a glance
AI summary written from our chart and store data, 2026-11-02. It can be wrong: check the numbers above.
A wordless educational app for children aged 6-8 that teaches subtraction from 1 to 10 using a Leitner-system-based progression across eight difficulty levels. The app currently holds the #4 position in the Indonesian Education Paid charts, indicating strong market traction despite having zero recorded user ratings.
Similar apps: DragonBox Numbers, Todo Math, Khan Academy Kids
2-1 on the App Store
App details
App ID
813696266
Publisher
Matthias Vanselow
On the store since
Feb 2014
12 years on the store
Minimum OS
iOS 13.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
58 MB
Also listed in
Family, Games
App privacy Measured
2-1’s App Store privacy label declares 0 data categories used to track you across other companies’ apps and websites, 0 linked to your identity and 1 collected anonymously.
Used to track you
0
Linked to you
0
Not linked to you
1
Not linked to you
DDiagnostics
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
What users say about 2-1
From recent reviews.
About 2-1
2-1 helps to teach children how to subtract numbers from 1 to 10. The app doesn't use any words, so it can be used by children in any language. The app has been tested by teachers — you will find the references inside the app, under "references".
The app has eight levels, from BEGINNER to INSANE. Each level has nine games, its own tasks and its own trophy — 72 games and eight trophies in all. The levels up to HARD already cover all 45 subtraction tasks from 1 to 10; CHAMPION and INSANE are an extra challenge on top.
Our apps are based on a modification of the Leitner system:
http://en.wikipedia.org/wiki/Flashcard
This means that a task comes back until the child answers it correctly. The app also remembers every task the child has ever got wrong and brings it back later; in the two highest levels, part of every game is drawn from that list. This is how the answers stay in the child's memory, so real learning happens.
If the child answers all the tasks of a game correctly, the game is finished, and the next game opens only when the score is high enough. Every game can earn up to three stars. To earn the third star, the child has to play the game again, this time without the help of the animals.
• Eight levels with nine games each, and a trophy for every level
• Every player has their own name, their own scores and their own settings
• Two settings per child: how many different tasks one game holds, and how often a task comes back
• The scores can be reset, so that a child can repeat the lessons later, or another child can do the exercises
• No advertising from third parties
• No account and no registration
• Links out of the app only behind a parental gate
Please note that our apps are real educational apps, made, among others, for the classroom and for homework. In our apps the education is more important than fun. Our apps are more like doing homework than playing a game, so finishing them can be some work for a child. It might be helpful if the parents or teachers support the child's motivation. The reward for the work is that the child will master all subtraction tasks up to 10 without any problems.
We would very much appreciate any feedback from you: [email protected]
Recommended for ages 6 - 8
The app has eight levels, from BEGINNER to INSANE. Each level has nine games, its own tasks and its own trophy — 72 games and eight trophies in all. The levels up to HARD already cover all 45 subtraction tasks from 1 to 10; CHAMPION and INSANE are an extra challenge on top.
Our apps are based on a modification of the Leitner system:
http://en.wikipedia.org/wiki/Flashcard
This means that a task comes back until the child answers it correctly. The app also remembers every task the child has ever got wrong and brings it back later; in the two highest levels, part of every game is drawn from that list. This is how the answers stay in the child's memory, so real learning happens.
If the child answers all the tasks of a game correctly, the game is finished, and the next game opens only when the score is high enough. Every game can earn up to three stars. To earn the third star, the child has to play the game again, this time without the help of the animals.
• Eight levels with nine games each, and a trophy for every level
• Every player has their own name, their own scores and their own settings
• Two settings per child: how many different tasks one game holds, and how often a task comes back
• The scores can be reset, so that a child can repeat the lessons later, or another child can do the exercises
• No advertising from third parties
• No account and no registration
• Links out of the app only behind a parental gate
Please note that our apps are real educational apps, made, among others, for the classroom and for homework. In our apps the education is more important than fun. Our apps are more like doing homework than playing a game, so finishing them can be some work for a child. It might be helpful if the parents or teachers support the child's motivation. The reward for the work is that the child will master all subtraction tasks up to 10 without any problems.
We would very much appreciate any feedback from you: [email protected]
Recommended for ages 6 - 8
Latest updates
1.1.4
• The rhino now dances on the trophy page.
• Small fixes and improvements.
1.1.3
• The zebra now dances on the trophy page.
• Small fixes and improvements.
1.1.1
• New settings for each player: tap the gear next to the name on WHO IS PLAYING. Choose how often tasks come back, how many different tasks a game holds, and which sounds play.
• New quiet sounds for the classroom: SOFT and WOOD.
• After game 9, the trophy page celebrates with a cup, sparklers and fireworks.
• Small fixes and improvements.
Store changes
What 2-1 changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
50 MB → 58 MB (+14%)
App got bigger
43 MB → 50 MB (+18%)
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