# Ruler 2.0 - inch, mm, cm

> High measurement accuracy

Canonical page: [https://chrome-stats.com/d/id1345983397](https://chrome-stats.com/d/id1345983397)

## Overview

- **ID:** `id1345983397`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Oleg Osipov
- **Category:** Utilities
- **Rating:** 3.90 / 5 (205 ratings)
- **Version:** 2.0.8
- **Last updated:** 2025-11-14
- **First published:** 2018-02-13
- **Size:** 15 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/ruler-2-0-inch-mm-cm/id1345983397)
- **Privacy policy:** [https://olegosipov.ru/app/policy.html](https://olegosipov.ru/app/policy.html)

## Description

Ruler 2.0 is an on-screen ruler designed for high-precision measurements on iPhone and iPad. Switch between inches, centimeters and millimeters, pick from three color themes, and measure either the length or the width and length together. Tap the measurement result to adjust it manually, and pan with two fingers anywhere on the screen for even finer accuracy. Save each measurement as a photo directly to your Camera Roll and share it with friends.

Designed for quick, accurate measurements in crafts, design, education, and everyday tasks, Ruler 2.0 combines simplicity with precision. The app supports both metric and imperial systems, making it a versatile tool for any measuring need and is free to use.

## Rankings

- #110,531 — Overall

## Review summary

Users report that Ruler 2.0 was previously accurate and useful, with a feature-rich design, but current versions suffer from serious scaling and accuracy problems on newer iPhones/iPads. The core issues are inaccurate measurements, lack of user-adjustable scaling, and outdated updates that fail to support modern devices. A few reviews still praise its features and past performance, suggesting potential if the developers release timely fixes.

### Pros

- Feature-rich with a settings suite that matches what users want in a ruler app.
- Useful and generally well-regarded; described as very useful.
- Longstanding favorite and trusted by users for years.
- Historically accurate on older devices, showing potential if updated for modern screens.

### Cons

- Measurements (inches, centimeters, millimeters) are often off by a factor, reducing trust.
- Scaling does not adapt to newer devices (high-DPI screens) and the app has not been updated for current models.
- No built-in way to adjust scale or screen size manually; settings do not offer a fix for this issue.
- Long gaps between updates; last update was two years ago, with reports of the app becoming unusable on newer devices.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1345983397)