Simple Flash Mental Arithmetic vs FlashNine
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Simple Flash Mental Arithmetic
Practice mental math with this application. Choose from various difficulty levels to train your arithmetic skills or engage in brain exercises for anti-aging. It's a straightforward tool for improving calculation speed and accuracy.
- Adjustable difficulty levels
- Mental arithmetic training
- Anti-aging brain exercises
- Suitable for all skill levels
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It is a standard flash mental arithmetic app. You can choose the difficulty level that suits your abilities. Please take advantage of this app to mental arithmetic training or anti-aging.
FlashNine
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The nine panels flash in order from 1 to 1. Push the panels in the order in which they flash. If you press the panels in the wrong order, you will lose points. The game is to press the buttons as accurately and quickly as possible within 30 seconds.
Screenshots
Verdict
The clearest difference is update cadence: FlashNine at every 2 days against Simple Flash Mental Arithmetic's every 2 months. Simple Flash Mental Arithmetic's advantage is iOS requirement (12.0 vs 17.2). 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.
Simple Flash Mental Arithmetic ships an update every 2 months, FlashNine every 2 days. The most recent releases landed on September 27, 2026 and October 2, 2026 respectively.
| Parameter | Simple Flash Mental Arithmetic | FlashNine |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 21 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuki Takeda | Saki Inoue |
In-app purchases
Simple Flash Mental Arithmetic
No in-app purchases
FlashNine
No in-app purchases
Questions
Is Simple Flash Mental Arithmetic free?
Is FlashNine free?
Do Simple Flash Mental Arithmetic or FlashNine have ads?
Which is updated more often, Simple Flash Mental Arithmetic or FlashNine?
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