Soroban Drill vs Flash Mental Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Soroban Drill
Practice Japanese abacus calculations with this app. It offers exercises for addition, subtraction, sums, multiplication, and division. Advanced features like multiplication, division, and mock exams are available via in-app purchase.
- Arithmetic drills
- Multiplication practice
- Division practice
- Mock soroban exams
- Addition and subtraction exercises
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This is a soroban practice app for soroban beginners. Easily practice multiplication and other arithmetic anywhere, or try a mock soroban exam. - Addition - Subtraction - Sums - Multiplication - Division - Mock exams * Multiplication, division, and mock exams can be unlocked through in-app payment.
Flash Mental Math
Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.
- Mental arithmetic practice
- Easy, normal, and difficult modes
- Customizable modes
- Brain training
- Calculation skill improvement
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Flash mental arithmetic practice app In addition to the easy, normal, and difficult modes, there are also custom modes. It can also be a brain training to improve mental arithmetic
Screenshots
Verdict
The clearest difference is in-app purchases: Flash Mental Math at none against Soroban Drill's 1. Flash Mental Math also leads on rating (4.7 vs 4.4). Soroban Drill's advantage is ads (none vs shown) and ratings volume (64 vs 18). On price, update cadence 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. Soroban Drill sells 1 one-off in-app purchase. Flash Mental Math asks for nothing beyond the download.
Flash Mental Math holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 64 and 18 respectively.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.
| Parameter | Soroban Drill | Flash Mental Math |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (64 ratings) | 4.7 (18 ratings) — better |
| Positive reviews | 64.5% of reviews | — |
| Number of ratings | 64 — better | 18 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Junichiro Komizo | Ryouhei Azuma |
Customer experience
Soroban Drill
Flash Mental Math
In-app purchases
Soroban Drill
- 全ての機能をアンロック$3.99
Flash Mental Math
No in-app purchases
Questions
Is Soroban Drill free?
Is Flash Mental Math free?
Which has better reviews, Soroban Drill or Flash Mental Math?
Do Soroban Drill or Flash Mental Math have ads?
Which is updated more often, Soroban Drill or Flash Mental Math?
Other comparisons
