# 暗算ランカー(インド式脳トレ)

> Brain training with Indian-style double-digit multiplication! Complete 3 patterns x 10 questions in a time attack to get a title.

Canonical page: [https://chrome-stats.com/d/com.notore.indocalc](https://chrome-stats.com/d/com.notore.indocalc)

## Overview

- **ID:** `com.notore.indocalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** BlissMiki
- **Category:** EDUCATION
- **Downloads:** 37
- **Last updated:** 2026-01-09
- **First published:** 2026-01-09
- **Publisher country:** JP
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.notore.indocalc)
- **Website:** [https://brissmikideveloper-pixel.github.io/app-ads.txt](https://brissmikideveloper-pixel.github.io/app-ads.txt)
- **Privacy policy:** [https://docs.google.com/document/d/1DLBsH7Jf9fAPTt-tXmG4U4R\_NsmGoTBYciXIs5dTsAM/edit?usp=sharing](https://docs.google.com/document/d/1DLBsH7Jf9fAPTt-tXmG4U4R_NsmGoTBYciXIs5dTsAM/edit?usp=sharing)

## Description

Improve your mental arithmetic skills in a fun way!<br>This app is a mental arithmetic practice app using Indian-style double-digit multiplication. Practice three different patterns in order to efficiently hone your mental arithmetic skills.<br><br>・Try the Time Attack!<br>Try out 10 practice problems and see how many seconds it takes you to solve them. This app trains both speed and accuracy.<br><br>・Earn titles and level up!<br>Complete the practice within the set six hours to earn a title! Collect titles in order to naturally improve your mental arithmetic skills.<br><br>・Perfect for Education<br>Practice repeatedly like a game, making it enjoyable for elementary and junior high school students, and even adults.<br><br>・Simple and Easy-to-Use Design<br>Intuitive controls let you start practicing right away. No unnecessary features allow you to focus on your studies.<br><br>・Steadyly improve your mental arithmetic skills with just a little time each day!<br>Have fun and aim to become a &quot;mental arithmetic master!&quot;

## Rankings

- #2,355,502 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.notore.indocalc)