Add and subtract within 20 Downloads & RevenueAdd and subtract within 20 · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperSergey Malugin
CategoryEducation
Price3.99 CAD
Released
Rating★ 0.0 (0)
Version5.0.0
Age rating4+
First seen by us
3 Oct 2026
3 Oct 2026Add and subtract within 20 update history & changes
Last change · 4 events since 9 Dec 2013Full timeline ↓Full timeline · 3 events in the last 12 months
- 📈Add and subtract within 20 dropped out of every chart we trackLast seen 3 Oct
- 🆕Add and subtract within 20 first spotted by AppInsider#37 in Top Paid · Education · Canada
- 🆕Add and subtract within 20 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
Add and subtract within 20 on the App Store
App details
App ID
757149544
Publisher
Sergey Malugin
On the store since
Dec 2013
12 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
25
CS DA NL EN FI FR DE EL HE ID IT JA …
Size
19 MB
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
About Add and subtract within 20
Transform Math Practice into an Exciting Adventure!
Are you looking for an engaging way to help your child master addition and subtraction within 20? Our app combines education with entertainment, offering a unique experience that makes learning math both fun and effective.
Key Features:
Interactive Mini-Games: Children can enjoy a variety of simple yet captivating mini-games that make math practice enjoyable.
Handwriting Recognition: Leveraging advanced handwritten digit recognition technology, the app allows children to write their answers naturally, enhancing both their math skills and handwriting.
Adaptive Difficulty: The app adjusts the level of difficulty based on your child's progress, ensuring a personalized learning experience that keeps them challenged yet motivated.
Why Choose Our App?
Natural Learning Experience: By allowing handwriting input, children can focus on solving problems without the distractions of multiple-choice questions or keyboard input, promoting better concentration and learning outcomes.
Skill Enhancement: Designed specifically to improve addition and subtraction skills with numbers up to 20, our app provides targeted practice to build a strong mathematical foundation.
Engaging Content: The fun mini-games and adaptive challenges keep children engaged, making them more likely to practice regularly and develop a love for math.
Are you looking for an engaging way to help your child master addition and subtraction within 20? Our app combines education with entertainment, offering a unique experience that makes learning math both fun and effective.
Key Features:
Interactive Mini-Games: Children can enjoy a variety of simple yet captivating mini-games that make math practice enjoyable.
Handwriting Recognition: Leveraging advanced handwritten digit recognition technology, the app allows children to write their answers naturally, enhancing both their math skills and handwriting.
Adaptive Difficulty: The app adjusts the level of difficulty based on your child's progress, ensuring a personalized learning experience that keeps them challenged yet motivated.
Why Choose Our App?
Natural Learning Experience: By allowing handwriting input, children can focus on solving problems without the distractions of multiple-choice questions or keyboard input, promoting better concentration and learning outcomes.
Skill Enhancement: Designed specifically to improve addition and subtraction skills with numbers up to 20, our app provides targeted practice to build a strong mathematical foundation.
Engaging Content: The fun mini-games and adaptive challenges keep children engaged, making them more likely to practice regularly and develop a love for math.
Latest updates
5.0.0
Updated to iOS SDK 18.2 and AIR SDK 51.1
