Abacus Lesson -ADD and SUB-
Hirokazu Komatsu Education iPhoneiPadiPod touch
Abacus Lesson -ADD and SUB- is a free Education app for iPhone and iPad by Hirokazu Komatsu. Rated 4.9/5 from 827 ratings. Requires iOS 11.0.
- Rating
- 4.9
- 827 ratings
- Price
- Free
- on the App Store
- Size
- 138 MB
- Age 4+
- Updated
- Jan 16
- 2024 · v3.1.9
Screenshots
About Abacus Lesson -ADD and SUB-
This is an app that you can learn addition and subtraction using an abacus. An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on. Some people may say "Isn't it an unnecessary tool if you have a calculator such as a smartphone?". Answer would be "No". The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating. Because of its simplicity, you will be able to easily use the abacus in your mind. Imagine that you can use calculations of about 3 digits in your life without physical tools. This app will give you the skill of calculation.
Ratings & reviews
4.9
827 ratings
What’s new
Version 3.1.9 · Updated January 16, 2024
updated library.
App privacy
The developer, Hirokazu Komatsu, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising
Alternatives to Abacus Lesson -ADD and SUB-
Looking for apps like Abacus Lesson -ADD and SUB-? Here are 6 similar apps on the App Store. The highest rated is Soroban Training (4.7/5), and 5 of the 6 are free to download.
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Soroban Training
4.7
-
Abacus Simulator
4.7
-
Soroban: Japanese Abacus Math
4.5
-
KIDS SUM-UP! Happytouch®
3.8
-
Abacus Mental Math Training
4.1
-
Soroban - Japanese Abacus
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Abacus Lesson -ADD and SUB- | 4.9 / 5 (827 ratings) | Free | January 16, 2024 | |
| Soroban Training | 4.7 / 5 (179) | Free | Jun 13, 2026 | Compare |
| Abacus Simulator | 4.7 / 5 (41) | Free | Jan 23, 2024 | Compare |
| Soroban: Japanese Abacus Math | 4.5 / 5 (24) | Free | Oct 14, 2026 | Compare |
| KIDS SUM-UP! Happytouch® | 3.8 / 5 (83) | Free | Mar 24, 2025 | Compare |
| Abacus Mental Math Training | 4.1 / 5 (31) | Free | May 7, 2025 | Compare |
| Soroban - Japanese Abacus | – | 1.99 USD | Oct 13, 2026 | Compare |