Dynamic Visual Acuity vs Keep your reflexes
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Dynamic Visual Acuity
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Numbers pass in front of your eyes at high speed, and you must enter the number and answer with a check mark. Each time you answer correctly, the number of digits passing by increases. There are two modes: High Speed and Low Speed. Aim for a high ranking in the national ranking!
Keep your reflexes
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FlashFive is a fun training game that helps you boost your focus and improve your reaction speed! Five circles appear on the screen, and your goal is to tap the one that lights up within the time limit. The time gets shorter little by little, but donโt rushโtake your time and enjoy the challenge. Your score is based on how many circles you tap correctly. Play at your own pace and steadily train your concentration while having fun. Try playing a little every day to refresh your mind and body!
Screenshots
Verdict
The clearest difference is update cadence: Keep your reflexes at every 2 days against Dynamic Visual Acuity's every 39 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dynamic Visual Acuity ships an update every 39 months, Keep your reflexes every 2 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.
| Parameter | Dynamic Visual Acuity | Keep your reflexes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 39 months | Every 2 days โ better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 14.1 โ better | 15.6 |
| Further details โ not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Saki Inoue | Masaharu Tsukamoto |
In-app purchases
Dynamic Visual Acuity
No in-app purchases
Keep your reflexes
No in-app purchases
Questions
Is Dynamic Visual Acuity free?
Is Keep your reflexes free?
Do Dynamic Visual Acuity or Keep your reflexes have ads?
Which is updated more often, Dynamic Visual Acuity or Keep your reflexes?
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