Abacus Lesson 4+
Change your life with abacus!
Hirokazu Komatsu
Designed for iPad
-
- Free
- Offers In-App Purchases
Screenshots
Description
356+735+195, 23×89, 5626÷58, Can you solve each in 5 sec by mental arithmetic?
The goal of this app is to learn abacus and solve these problems in mental arithmetic within 5 seconds.
All lessons of the abacus lesson series, which have been highly evaluated all over the world, are recorded. The lessons have been reworked in a more polite and easy-to-understand.
In addition, we have added unique training methods such as training focusing on finger movements and mental arithmetic training to improve mental arithmetic in order to learn abacus more efficiently.
And various improvements have been made.
- Either vertical screen or horizontal screen can be selected.
- The position and size of the abacus and window can be freely laid out.
- No ads.
- Added sound variations. Volume control can also be finely set.
- The color of the abacus can be set freely.
- Earn a trophy by achieving the goal.
- Smoother operability by optimizing the app.
◆Support web page
https://hirokuma.blog/?p=4427
What’s New
Version 1.1.5
Updated IAP Library.
Fixed an issue that fail to verify receipts signed with sha-256
App Privacy
The developer, Hirokazu Komatsu, 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 Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- Hirokazu Komatsu
- Size
- 160.1 MB
- Category
- Education
- Compatibility
-
- iPhone
- Requires iOS 11.0 or later.
- iPad
- Requires iPadOS 11.0 or later.
- iPod touch
- Requires iOS 11.0 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English, Japanese
- Age Rating
- 4+
- Copyright
- © 2021 Hirokuma.App
- Price
- Free
- In-App Purchases
-
- Unlock all contents Rp 99ribu