Flash Mental Calc vs FlashAnzan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flash Mental Calc
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Boost your mental math skills with Flash Mental Calculation! A simple and effective training app where numbers flash on screen and you calculate the sum as fast as you can. 【Features】 · Addition, Subtraction & Mixed mode · Customizable difficulty (digits, count, speed) · Sound & haptic feedback · Japanese / English / Chinese 【Premium - one-time】 · Mixed mode (addition + subtraction) · Unlimited custom difficulty · Accuracy charts & statistics
FlashAnzan
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Practice flash anzan on your own—fast rounds, clear feedback, no clutter. Pick digits, how many numbers, and how long each stays on screen, then tap Start. Numbers appear one by one. After the last one, enter a single total to score. Correct and incorrect answers use marks and sound, and a session score stays while the app is open. Cancel mid-flash and that round is not counted. Closing the app clears the score. No accounts, no network, no purchases. Works on iPhone and iPad. The UI follows the device language (English / Japanese).
Screenshots
Verdict
Flash Mental Calc and FlashAnzan are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Flash Mental Calc | FlashAnzan |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Wenbo Chen | Haruhiko Kishi |
In-app purchases
Flash Mental Calc
No in-app purchases
FlashAnzan
No in-app purchases
