Abacus Exercise vs Flash Mental Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus Exercise
Practice abacus calculations with a customizable digital tool. Adjust bead colors, sounds, and layout for a personalized learning experience. Challenge yourself with addition, subtraction, multiplication, and division exercises.
- Customizable abacus layout
- Adjustable bead size and position
- Up to 15-digit support
- Customizable bead colors and sounds
- Addition, subtraction, multiplication, division practice
- Level-based challenges
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This app focuses on the ease of use of the abacus on the app, and aims to realize smooth and comfortable operability. In addition to being able to use the abacus widely on the horizontal screen, the size and position can be freely customized according to the device. The number of digits can be used up to 15 digits, and the color and sound of the beads can also be set. You can challenge the addition and subtraction, multiplication, division questions according to your level.
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 update cadence: Abacus Exercise at every 3 weeks against Flash Mental Math's every 3 months. Abacus Exercise also leads on ratings volume (60 vs 18) and iOS requirement (11.0 vs 15.6). Flash Mental Math's advantage is rating (4.7 vs 4.5). On price, ads, in-app purchases and monetization model 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.
Flash Mental Math holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 60 and 18 respectively.
Abacus Exercise ships an update every 3 weeks, Flash Mental Math every 3 months. The most recent releases landed on September 21, 2026 and August 3, 2026 respectively.
| Parameter | Abacus Exercise | Flash Mental Math |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (60 ratings) | 4.7 (18 ratings) — better |
| Positive reviews | 46.2% of reviews | — |
| Number of ratings | 60 — better | 18 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 90 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Hirokazu Komatsu | Ryouhei Azuma |
Customer experience
Abacus Exercise
Flash Mental Math
In-app purchases
Abacus Exercise
No in-app purchases
Flash Mental Math
No in-app purchases
Questions
Is Abacus Exercise free?
Is Flash Mental Math free?
Which has better reviews, Abacus Exercise or Flash Mental Math?
Do Abacus Exercise or Flash Mental Math have ads?
Which is updated more often, Abacus Exercise or Flash Mental Math?
Other comparisons
