Flash mental arithmetic-Simple

Developer: Ryouhei Azuma

Category: Education

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1.1K installs

22 ratings

18 monthly active users

$<10K monthly revenue est.

IAP 0% · Ad 100%

Flash mental arithmetic-Simple Summary

Flash mental arithmetic-Simple is a ad-supported iOS app in Education by Ryouhei Azuma. Released in Jan 2021 (5 years ago). It has 22 ratings with a 4.73★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 18 monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store metadata: updated Apr 15, 2026.

Store info: Last updated on App Store on Apr 15, 2026 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: 1547944841

First Released: 2021-01-09

Store Last Updated: 2026-04-15

In-App Purchases: No

Ads: Yes

Website: razuma.jp

App Store

Crawl Status: Success

AppGoblin First Crawled: 2023-01-16

AppGoblin Last Crawled: 2026-04-23

Ads & App-Ads.txt

Ads.txt Last Crawled: 2025-10-19

Ads.txt Crawl Status: Success

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4.73★

Ratings: 22

5★

4★

3★

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1★

Screenshots

App Description

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