# Abacus Exercise vs ANZAN Endless

The clearest difference is rating: Abacus Exercise at 4.5 against ANZAN Endless's 4.0. Abacus Exercise also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (60 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Abacus Exercise holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Abacus Exercise has 60 ratings behind it against 1, so its average is the more settled of the two.

Abacus Exercise ships an update every 3 weeks, ANZAN Endless every 4 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Abacus Exercise | ANZAN Endless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (60 ratings)](https://appshunter.io/ios/app/abacus-exercise/id1523833529/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/anzan-endless/id1544396774/reviews) |
| Number of ratings | **60** | 1 |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 90 MB | 3 MB |
| Requires iOS | **11.0** | 13.7 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hirokazu Komatsu](https://appshunter.io/developer/1523833531) | [sa0001.industry](https://appshunter.io/developer/410512599) |

## 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


### ANZAN Endless

[App page](https://appshunter.io/ios/app/anzan-endless/id1544396774)

Enhance your mental math skills with daily challenges that adapt to your level. Improve speed and accuracy through consistent practice. This app helps you naturally progress in flash mental arithmetic.

**Highlights:** Adaptive difficulty adjustment, Daily practice challenges, Progressive leveling system, Flash mental arithmetic training, Speed and digit count customization

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

**In-app purchases:** none


## Frequently asked questions

### Is Abacus Exercise free?

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

### Is ANZAN Endless free?

ANZAN Endless is free to download, with no in-app purchases.

### Which has better reviews, Abacus Exercise or ANZAN Endless?

Abacus Exercise is rated higher. Abacus Exercise averages 4.5 out of 5 from 60 ratings, while ANZAN Endless averages 4.0 from 1 ratings.

### Do Abacus Exercise or ANZAN Endless have ads?

Both Abacus Exercise and ANZAN Endless show ads.

### Which is updated more often, Abacus Exercise or ANZAN Endless?

Abacus Exercise ships an update every 3 weeks, and ANZAN Endless every 4 months. Most recently, Abacus Exercise was updated on September 21, 2026 and ANZAN Endless on September 10, 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.*