# Smart Abacus vs Soroban Calculation

The clearest difference is update cadence: Soroban Calculation at every 3 days against Smart Abacus's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.

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

Smart Abacus ships an update every 11 days, Soroban Calculation every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Smart Abacus | Soroban Calculation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-abacus-mental-math/id6761702036/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 50 MB | 28 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZerwOne Network, LLC](https://appshunter.io/developer/1792742872) | [Smart Connections](https://appshunter.io/developer/1656004006) |

## What reviewers say

### Smart Abacus

[App page](https://appshunter.io/ios/app/smart-abacus-mental-math/id6761702036)

Master mental math using the Japanese Soroban method with interactive practice and structured lessons. Improve speed, focus, and accuracy through gamified milestones and progress tracking.

**Highlights:** Digital Soroban with realistic bead movement, Step-by-step learning paths, Flash Tests for speed and accuracy, Voice dictation for training, Progress tracking and insights, Gamified milestones and achievements

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

**In-app purchases:** none


### Soroban Calculation

[App page](https://appshunter.io/ios/app/soroban-calculation/id6808877213)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Abacus free?

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

### Is Soroban Calculation free?

Soroban Calculation is free to download, with no in-app purchases.

### Do Smart Abacus or Soroban Calculation have ads?

Neither Smart Abacus nor Soroban Calculation shows ads.

### Which is updated more often, Smart Abacus or Soroban Calculation?

Smart Abacus ships an update every 11 days, and Soroban Calculation every 3 days. Most recently, Smart Abacus was updated on October 31, 2026 and Soroban Calculation on October 31, 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.*