# SoroTouch Mental Calculation vs Monte Forest

The clearest difference is price: SoroTouch Mental Calculation at Free against Monte Forest's $0.99. SoroTouch Mental Calculation also leads on iOS requirement (13.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

SoroTouch Mental Calculation is free to download; Monte Forest costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SoroTouch Mental Calculation ships an update every 2 months, Monte Forest every 3 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SoroTouch Mental Calculation | Monte Forest |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.3 (39 ratings)](https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 32.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Subscription | — |
| Size | 460 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [SoroTouch Co., Ltd.](https://appshunter.io/developer/927820962) | [daijiro makabe](https://appshunter.io/developer/1850437524) |

## What reviewers say

### SoroTouch Mental Calculation

[App page](https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190)

This app teaches abacus method mental calculation using patented imaging technology. Designed for children aged 5-8, it offers games and rankings to enhance math skills through daily practice. It requires membership registration via a web portal.

**Highlights:** Abacus method mental calculation, Imaging skills training, Daily missions and games, Progress tracking and rankings, Visible and Invisible modes, Audio and rhythm-based learning

**In-app purchases:** none


### Monte Forest

[App page](https://appshunter.io/ios/app/monte-forest/id6757361262)

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

**In-app purchases:** none


## Frequently asked questions

### Is SoroTouch Mental Calculation free?

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

### Is Monte Forest free?

Monte Forest costs $0.99, with no in-app purchases.

### Do SoroTouch Mental Calculation or Monte Forest have ads?

Neither SoroTouch Mental Calculation nor Monte Forest shows ads.

### Which is updated more often, SoroTouch Mental Calculation or Monte Forest?

SoroTouch Mental Calculation ships an update every 2 months, and Monte Forest every 3 months. Most recently, SoroTouch Mental Calculation was updated on October 24, 2026 and Monte Forest on October 16, 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.*