# SoroTouch Mental Calculation — Fun Abacus Mental Calculation

> EdTech app for abacus mental calculation using imaging skills. (iPhone/iPad app by SoroTouch Co., Ltd..)

- Source: https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190 (this page in markdown: same URL + `.md`)
- Developer: [SoroTouch Co., Ltd.](https://appshunter.io/developer/927820962)
- Category: Education
- Price: Free
- Rating: 2.40/5 from 37 App Store ratings · 83 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 455 MB
- Languages: American English, Indonesian, Japanese, Malay, Chinese (Simplified, China), Uzbek, Vietnamese
- Released: 2017-07-20
- Data updated: 2026-07-31
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190/reviews.md

## What is SoroTouch Mental Calculation?

【What is SoroTouch?】
Equip your child with mental calculation abilities that last a lifetime. 
Become a math pro with our world-standard ”two-handed system"!

SoroTouch is an EdTech app designed to help children master abacus-style mental calculation by visualizing numbers as "bead images" through patented technology. We especially recommend it for children aged 5 to 8, a period of high brain plasticity. 
With just 30 minutes of daily practice, children aim to become mental calculation masters (handling problems like 2digits 8numbers addition and subtraction) within two years. 

*This app is exclusively for SoroTouch members. 
*A User ID and password are required for access.

【Features】
・Just 30 Minutes a Day!: Consistent daily practice builds lifelong calculation skills.

・Fun, Game-like Learning!: Featuring over 20 types of games to support learning. Children learn fast and accurate touching while having fun.

・Patented Mental Calculation Board: Using our patented board based on abacus principles, children can start mental calculation training from day one. This is a new learning method to efficiently master "image-based mental calculation.”

・Global & Online: Compete and learn with children worldwide through "Rankings" and "SoroFes." By experiencing diversity, children learn to respect one another.

・Continuous Updates via Data Analysis: We analyze daily learning data to constantly improve and update the app.

【FAQ】 
Q: Can I use the app immediately after installation? 
A: This app is for SoroTouch members only. Please note that prior membership registration and a valid User ID/password are required.

Q: Why is my answer marked "incorrect" even if the number is right? 
A: SoroTouch focuses not only on the "answer" but also on "correct finger movements." Mastering the right touch ensures "authentic mental calculation abilities" that work even as numbers and digits increase. Please check the instructional videos for the "correct finger movements" first.

Q: What should I do if the beads don't respond well to touch? 
A: You can adjust the bead size from Settings>Board to match your child's hand size. Also, the secret is to touch firmly with the pads of the fingers rather than using fingernails.

## Key features

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

## Recent user reviews (10 of 83)

All indexed reviews: https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190/reviews.md

### 5/5 — Awesome app

*2026-05-02, version 1.38*

This is an awesome app. I have been learning division, multiplication, and others stuff. I have been using sorotouch for 3 years already. I am 10 years old.

### 1/5 — Delete this dumb app

*2026-04-28, version 1.38*

When I mess up on the timestable it will not help

### 1/5 — fix yo dumb app

*2026-03-05, version 1.37*

this thing says im not clicking nothin I AMM + i cant finish tap alot? you guys need to give more time for us folks…no wonder u got 2.5 stars.

### 1/5 — Do not download this app

*2026-02-25*

My brother is crying and my mom is making my me do this dumb app

### 1/5 — Worst app

*2026-01-23, version 1.37*

I don’t like it and it’s expensive

### 1/5 — Worst app ever

*2026-01-06, version 1.36*

this is the worst app and to expensive

### 1/5 — 終わったそろばん

*2025-12-16, version 1.36*

答え合ってるのに誤答になる問題難しいマジで終わったそろばん🧮😮‍💨😮‍💨 反応しねーし時間制限無しだったら僕もできるけど

### 1/5 — 音声悪い

*2025-12-14, version 1.36*

音声が不自然。特に悪い音声はこれ。
14、20、30、40、50、51、53、54、60、70、80、90、桁が大きい数。（一部）
音声がゆっくりだと、気持ち悪いです。魚がペラペラで、餌をあげても大きくなりません。で、星が増えないと魚が大きくならないことが分かりました。　そろばん、答え入力板まで反応しません。後、11月にやったそろフェス2025の動画がまだ来ません。いったいいつ来るんですか。ゲームのバグもあり過ぎます。おたすけの時も、ゆっくり過ぎて、時間の無駄です。アプリを閉じて、時間が経つと、前の画面に、戻ってしまいます。AIフクロウさんの予想も、全てダメダメです。2回連続で銀で、戻るのはやめて下さい。これが修正出来たら星5にしてあげます。よろしくお願いします。

質問です。普通のミッションと、ファイナルチャレンジの違いは何ですか。

### 1/5 — こりゃダメだ

*2025-12-14, version 1.36*

5年使っていました。今ではソロタッチのおかげで暗算は素早くできます。問題は反応しないことですね。めっちゃイラつきます。イラつきすぎてiPadを噛んで壊したこともあります。改善してほしいです。

### 2/5 — not great!

*2025-12-14*

personally, this app teaches me basic math and multiple addition equations and many more. this is obviously helpful for my learning but i also hate the fact that you have to do missions everyday.

**Developer response:** Thank you for your comments and for continuing to challenge yourself with ongoing learning! While daily practice can be demanding, we'll keep cheering you on in your quest to become a mental math master.

## Frequently asked questions about SoroTouch Mental Calculation

### What is SoroTouch Mental Calculation?

SoroTouch is an educational technology app that teaches the abacus method of mental calculation. It utilizes patented technology to develop imaging skills by having users visualize numbers and bead formations in their minds. The app aims to improve mental calculation abilities through engaging games and daily practice.

### What are the key features of SoroTouch?

Key features include training imaging ability through 'Visible Mode' and 'Invisible Mode', daily missions with world and universe travel themes, and a variety of math problems covering reading, listening, accuracy, and image training. It also incorporates songs and rhythms for enhanced learning and allows users to track progress through rankings.

### How much does SoroTouch cost?

Using SoroTouch requires a membership, which must be registered via a Web Portal. Specific pricing details for the membership are not provided in the description, but it is indicated that a userID and password are required to access the app's services.

### Who is SoroTouch designed for?

This app is specifically recommended for children between the ages of 5 and 8. This age range is considered a critical period for brain development, and the app is designed to leverage this by enhancing mental calculation skills through its unique teaching methods.

### What mental calculation skills can be acquired with SoroTouch?

With consistent daily practice of 30 minutes for two years, users aim to acquire skills such as adding/subtracting four 3-digit numbers, multiplying 2-digit by 2-digit numbers, and dividing 4-digit numbers by 1-digit numbers. The app focuses on building speed and accuracy in these calculations.

## Version history (last 5 releases)

### 1.41 — 2026-07-22

[Additional Features]
・The number "0" has been introduced to the game "Matching," and the question difficulty levels have been reviewed.
Other minor feature improvements and bug fixes.

### 1.40 — 2026-06-02

Fixed an issue where audio would not play when the device was in silent mode.

### 1.39 — 2026-05-27

【Additional Features】
The correction method for mistakes in the “Listening” problems in the mission has been revised
The speed for the “Listening” problems in the mission can now be adjusted

Other minor feature improvements and bug fixes.

### 1.38 — 2026-03-25

【Additional Features】
・Added learning support functions to the "Finger Exercise (Invisible)" and "Reading(Invisible)" problems in the missions.
・Speed adjustment is now available for the "Listening (Visible)" problems in the missions.

Other minor improvements and bug fixes

### 1.37 — 2026-01-21

・Added the “Visible 10” (10-Digit Board) mode to Board.
・Revised the ”Addition/Subtraction song” game, including optimized hint timing, question placement, and a full UI design.
・Updated the display logic for the ”Current” and “Review” sections within the Video List.
・In preparation for the iPadOS requirement increase starting January 2027, a notification message will now be displayed on devices running versions older than iPadOS 16 or those unable to update to iPadOS 16.
Other minor feature improvements and bug fixes.

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## More apps by SoroTouch Co., Ltd.

- [SoroRoom](https://appshunter.io/ios/app/sororoom/id1239288027)

All apps by SoroTouch Co., Ltd.: https://appshunter.io/developer/927820962

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*