Anzan19x19 vs Anzan+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Anzan19x19
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Method of mental calculation of 19x19 Provides a completely new mental method of multiplication from 11 to 19 This method can be understood in a few minutes and can be calculated on the fly.Provides a new mental calculation method of multiplication from 11 to 19.
Anzan+
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Let's calculate for brain training! This app's name "Anzan(暗算 in Japanese)" means "Mental arithmetic", working it out in your head! Just download and start using it from now on! No Sign-up! APP FEATURES ・Difficulty by level ・10 quizzes per session ・Timer measures your calculation speed ・Quick brain training in your spare time HOW TO USE ・Just download and select level RECOMMEND ・People who want to improve calculation skills ・People who want to train in Mental arithmetic
Screenshots
Verdict
The clearest difference is update cadence: Anzan19x19 at every 3 days against Anzan+'s every 5 months. Anzan19x19 also leads on iOS requirement (12.0 vs 16.2). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Anzan19x19 ships an update every 3 days, Anzan+ every 5 months. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.
| Parameter | Anzan19x19 | Anzan+ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 5 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 38 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Hajime Hotaka | Erika Fujita |
In-app purchases
Anzan19x19
No in-app purchases
Anzan+
No in-app purchases
