flash mental arithmetic

Liverazuma204 apps · 1.6M installsStrategyFree · contains adsjp.razuma.frashanzan

A simple flash mental arithmetic game

Alert me★ WatchOpen in Play ↗
Total installs
18,776
exact · Play shows 10,000+
Installs / day
0
7-day avg · last day 0
Rating
—★
— ratings · — reviews
Released
13 Nov 2020
5.9y ago
Last update
4 Oct 2026
v2.9 · 9d ago
Countries
—
not checked yet

Installs per day

gain of the exact counter

No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play
18,65018,70018,75018,80018,85018,90011 Oct12 Oct
05K10K15K20K13 Nov 202011 Oct 202612 Oct 2026

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • Shares data with third parties Location, App activity and 2 others
  • Collects data Location, App activity and 2 others
  • Data is encrypted in transit
  • No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

3 in 1 group
0 Sensitive1 Notable2 Routine
OtherNotable3

Access to miscellaneous device features that don't fit other categories

  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
Flash mental arithmetic practice app In addition to the easy, normal, and difficult modes, there is also a custom mode. It can also be a brain training to improve mental arithmetic

What's new

- New design: bigger, easier-to-read numbers - The result is now shown in words (correct / wrong, with the right answer) - Added a key to delete one digit at a time - Custom settings are now chosen with buttons, and you can start right from that screen

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