# Rule of Three - Calculator

> Simple Rule of 3 calculator

Canonical page: [https://chrome-stats.com/d/id1489858521](https://chrome-stats.com/d/id1489858521)

## Overview

- **ID:** `id1489858521`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tomas Parizek
- **Category:** Utilities
- **Version:** 1.1.3
- **Last updated:** 2020-09-17
- **First published:** 2019-12-04
- **Size:** 4.87 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/rule-of-three-calculator/id1489858521)
- **Privacy policy:** [https://ruleof3.tomasparizek.com/privacypolicy.html](https://ruleof3.tomasparizek.com/privacypolicy.html)

## Description

Simple calculator for the Rule of Three. Supports for both direct proportion and indirect proportion mode.

Accessibility should be an important part of every application. Rule of Three Calculator is tested and optimized for use via VoiceOver and other accessibility features.

If you have any issue with the app or you have a suggestion for an improvement, do not hesitate to contact me via email: rule_off_three@tomasparizek.com

## Rankings

- #1,314,509 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1489858521)