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Calc Training (30sec)

Tomohiro Ohwada

App StoreNo ratingFreeFirst seen 11 Nov 2026

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App info

Category: Navigation
Age rating: 4+
Price: Free
Version: 1.4.1
Released: Jan 8, 2021
Last updated: 9 Sept 2026
Size: 8.2 MB
Requires: iOS 16.0 or later
Languages: 2

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★★★★★

Average rating on the App Store. Apple doesn't publish how many ratings each star has.

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What's newin version 1.4.1

Minor fix.

About this app

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You can practice mental arithmetic in 30 seconds. Train your math skills by doing more mental arithmetic. ■5 types of training - Addition - Subtraction - Multiplication - Split - mix ■Features - 30 seconds of intensive training - Personal best confirmation ■Credit SE -> OtoLogic (https://otologic.jp/) BGM -> Pocket Sound (https://pocket-se.info/)

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