Comparison

SoroTouch Mental Calculation vs 玉井式 KIWAMI AAA+ 生徒用

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SoroTouch Mental Calculation

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
Read full description

【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.

About

玉井式 KIWAMI AAA+ 生徒用

This iPad app facilitates efficient learning of geometry and algebra through personalized accounts. Users can study math anytime with their unique login credentials. Access requires a separate ID and password provided by an affiliated cram school.

Highlights
  • Geometry learning
  • Algebra learning
  • Personalized accounts
  • Anytime math study
  • iPad compatible
Read full description

KIWAMI AAA+は「図形の極」と「代数の極」を効率的に学習できるiPadのアプリケーションです。  あなた専用のアカウントでログインすれば、いつでも好きなときに数学の勉強ができます。 【備考】 ご利用には別途塾より発行されるIDとパスワードが必要です。 iOS13.2以降の端末でご利用ください。

Verdict

The call

The clearest difference is monetization model: 玉井式 KIWAMI AAA+ 生徒用 at free against SoroTouch Mental Calculation's subscription. SoroTouch Mental Calculation's advantage is update cadence (every 2 months vs every 6 months) and review sentiment (32% vs 20%). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

SoroTouch Mental Calculation ships an update every 2 months, 玉井式 KIWAMI AAA+ 生徒用 every 6 months. The most recent releases landed on October 24, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 7 level
SoroTouch Mental Calculation versus 玉井式 KIWAMI AAA+ 生徒用: the parameters behind the verdict, then further details
ParameterSoroTouch Mental Calculation玉井式 KIWAMI AAA+ 生徒用
PriceFreeFree
Rating2.3 (39 ratings) — better—
Positive reviews32.1% of reviews — better20.0% of reviews
Number of ratings39 — better—
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPadiPad
Requires iOS13.0 — better13.2
Further details — not scored
Size460 MB17 MB
Age rating4+4+
DeveloperSoroTouch Co., Ltd.TAMAI INVESTMENT EDUCATIONS INC.

Customer experience

SoroTouch Mental Calculation

All ratings39 ratings
Positive30.8%
Neutral5.1%
Negative64.1%
Written reviews84 reviews
Positive32.1%
Neutral10.7%
Negative57.1%

玉井式 KIWAMI AAA+ 生徒用

Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

In-app purchases

None

SoroTouch Mental Calculation

No in-app purchases

None

玉井式 KIWAMI AAA+ 生徒用

No in-app purchases

Questions

Is SoroTouch Mental Calculation free?
SoroTouch Mental Calculation is free to download, with no in-app purchases.
Is 玉井式 KIWAMI AAA+ 生徒用 free?
玉井式 KIWAMI AAA+ 生徒用 is free to download, with no in-app purchases.
Do SoroTouch Mental Calculation or 玉井式 KIWAMI AAA+ 生徒用 have ads?
Neither SoroTouch Mental Calculation nor 玉井式 KIWAMI AAA+ 生徒用 shows ads.
Which is updated more often, SoroTouch Mental Calculation or 玉井式 KIWAMI AAA+ 生徒用?
SoroTouch Mental Calculation ships an update every 2 months, and 玉井式 KIWAMI AAA+ 生徒用 every 6 months. Most recently, SoroTouch Mental Calculation was updated on October 24, 2026 and 玉井式 KIWAMI AAA+ 生徒用 on September 8, 2026.

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