# npiSoroban vs Abacutor

The clearest difference is rating: Abacutor at 3.8 against npiSoroban's 3.4. Abacutor also leads on update cadence (every 2 months vs every 5 months) and ratings volume (29 vs 5). npiSoroban's advantage is iOS requirement (5.1.1 vs 15.1). 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.

Abacutor holds the better App Store score, 3.8 against 3.4. That said, the two scores are not equally well evidenced: Abacutor has 29 ratings behind it against 5, so its average is the more settled of the two.

npiSoroban ships an update every 5 months, Abacutor every 2 months. The most recent releases landed on June 11, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | npiSoroban | Abacutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/npisoroban-iphone-edition/id586798520/reviews) | **[3.8 (29 ratings)](https://appshunter.io/ios/app/abacutor/id1469765610/reviews)** |
| Number of ratings | 5 | **29** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 95 MB | 25 MB |
| Requires iOS | **5.1.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nonpareil Institute](https://appshunter.io/developer/401989715) | [Soroban League North America Corp](https://appshunter.io/developer/1896639256) |

## What reviewers say

### npiSoroban

[App page](https://appshunter.io/ios/app/npisoroban-iphone-edition/id586798520)

Learn to use the Japanese abacus, or soroban, with narrated tutorials on your iPhone or iPad. Master arithmetic with this ancient tool, now digitized for modern learning.

**Highlights:** Digital soroban (abacus), Narrated tutorials, Arithmetic practice, Educational tool, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### Abacutor

[App page](https://appshunter.io/ios/app/abacutor/id1469765610)

This app serves as a digital abacus for students to practice mental math and abacus skills. Teachers can assign homework and monitor student progress in real-time, facilitating faster learning.

**Highlights:** Digital abacus simulation, Mental math (Anzan) training, Homework assignment and management, Real-time student progress monitoring, Abacus and Soroban method, Classwork and homework tool

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

**In-app purchases:** none


## Frequently asked questions

### Is npiSoroban free?

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

### Is Abacutor free?

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

### Which has better reviews, npiSoroban or Abacutor?

Abacutor is rated higher. npiSoroban averages 3.4 out of 5 from 5 ratings, while Abacutor averages 3.8 from 29 ratings.

### Do npiSoroban or Abacutor have ads?

Neither npiSoroban nor Abacutor shows ads.

### Which is updated more often, npiSoroban or Abacutor?

npiSoroban ships an update every 5 months, and Abacutor every 2 months. Most recently, npiSoroban was updated on June 11, 2026 and Abacutor on September 18, 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.*