# Quick Calculator

> Speed-math game: beat the clock across three modes and six difficulties.

Canonical page: [https://chrome-stats.com/d/com.devRH.quickcalculator](https://chrome-stats.com/d/com.devRH.quickcalculator)

## Overview

- **ID:** `com.devRH.quickcalculator`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Rocket House Inc
- **Category:** TOOLS
- **Version:** 1.2
- **Last updated:** 2026-07-30
- **First published:** 2025-11-25
- **Publisher country:** US
- **Size:** 17 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.devRH.quickcalculator)
- **Privacy policy:** [https://cooperfryar.com/rhi-quick-calc](https://cooperfryar.com/rhi-quick-calc)

## Description

Quick Calculator is a speed-math game. You get 45 seconds. How many can you solve?<br><br>THREE MODES<br>- Mental Math: single digits, double digits, times tables, division, decimals, and primes-only<br>- Here&#39;s the Bill: work out the tip before the table notices, from whole dollars down to exact cents<br>- Dice Check: total the roll at a glance, from a pair of d6 up to a full d4/d6/d8/d10/d12/d20 set<br><br>SIX DIFFICULTIES<br>Easy through Impossible, each a preset bundle of rules that change how a round plays and what it pays. Or build your own in Custom.<br><br>UNLOCKABLE MODIFIERS<br>Earn career XP to unlock rule changes. Rush cuts the clock. Hidden makes the problem vanish before you answer. Cold Streak kills your multiplier. Sudden Death ends the round on a single mistake. Harder rules pay more.<br><br>STREAKS AND TIME<br>Right answers buy you time and build a score multiplier. Wrong answers cost you more than they give.<br><br>LOCAL LEADERBOARD<br>Track your best on all 18 levels against the developer&#39;s score, and see how many you have beaten.<br><br>No ads, no permissions, no tracking. Quick Calculator does not collect or store any personal data. Everything stays on your device.

## Rankings

- #3,191,765 — Overall

## Permissions and access

### Permissions

- `com.android.vending.CHECK_LICENSE`
- `com.devRH.quickcalculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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