# Abacus Exercise vs てんじくん 点字を読んで書いて覚える

The clearest difference is in-app purchases: Abacus Exercise at none against てんじくん 点字を読んで書いて覚える's 1. Abacus Exercise also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.6). てんじくん 点字を読んで書いて覚える's advantage is update cadence (daily vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. てんじくん 点字を読んで書いて覚える sells 1 one-off in-app purchase. Abacus Exercise asks for nothing beyond the download.

Abacus Exercise ships an update every 3 weeks, てんじくん 点字を読んで書いて覚える daily. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Abacus Exercise | てんじくん 点字を読んで書いて覚える |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (60 ratings)](https://appshunter.io/ios/app/abacus-exercise/id1523833529/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Ad-supported | — |
| Size | 90 MB | 1 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hirokazu Komatsu](https://appshunter.io/developer/1523833531) | [Kenichi Kato](https://appshunter.io/developer/6780769174) |

## What reviewers say

### Abacus Exercise

[App page](https://appshunter.io/ios/app/abacus-exercise/id1523833529)

Practice abacus calculations with a customizable digital tool. Adjust bead colors, sounds, and layout for a personalized learning experience. Challenge yourself with addition, subtraction, multiplication, and division exercises.

**Highlights:** Customizable abacus layout, Adjustable bead size and position, Up to 15-digit support, Customizable bead colors and sounds, Addition, subtraction, multiplication, division practice, Level-based challenges

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### てんじくん 点字を読んで書いて覚える

[App page](https://appshunter.io/ios/app/id6806784534)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告なしにする | $1.99 | one-time |


## Frequently asked questions

### Is Abacus Exercise free?

Abacus Exercise is free to download, with no in-app purchases.

### Is てんじくん 点字を読んで書いて覚える free?

てんじくん 点字を読んで書いて覚える is free to download, with in-app purchases available.

### Do Abacus Exercise or てんじくん 点字を読んで書いて覚える have ads?

Both Abacus Exercise and てんじくん 点字を読んで書いて覚える show ads.

### Which is updated more often, Abacus Exercise or てんじくん 点字を読んで書いて覚える?

Abacus Exercise ships an update every 3 weeks, and てんじくん 点字を読んで書いて覚える daily. Most recently, Abacus Exercise was updated on October 8, 2026 and てんじくん 点字を読んで書いて覚える on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*