# Ruler •

> Includes Camera (AR) Ruler

Canonical page: [https://chrome-stats.com/d/id1555214809](https://chrome-stats.com/d/id1555214809)

## Overview

- **ID:** `id1555214809`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Matrix Software Co.
- **Category:** Utilities
- **Rating:** 4.20 / 5 (409 ratings)
- **Version:** 1.5
- **Last updated:** 2026-04-16
- **First published:** 2021-03-05
- **Size:** 6.14 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/ruler/id1555214809)
- **Website:** [https://apps1.matrix-soft.org](https://apps1.matrix-soft.org/)
- **Privacy policy:** [https://www.matrix-soft.org/privacy\_policy.htm](https://www.matrix-soft.org/privacy_policy.htm)

## Description

Measure everything with a beautiful on-screen ruler. Choose between inches and centimeters, and start measuring with a responsive multi-touch system, enhanced by AR for real-world sizing via your camera.

From distance and angles to area, perimeter, volume, height, and paths, Ruler • covers 3D plane measurements and exports plans. It also includes a Bubble level, the ability to save measurements, and an on-screen ruler for tiny objects.

## Rankings

- #82,321 — Overall
- #28 — include

## Review summary

Reviews are mixed. Pros include cm/inch measurement support, a water-level feature, privacy options, and free/test availability. Cons focus on accuracy problems, device-size scaling issues, missing usage guidance, inconsistent cm metric behavior, and difficulty selecting measurement points. Overall reliability appears inconsistent with a need for clearer instructions, better cross-device compatibility, and improved measurement accuracy.

### Pros

- Supports measurements in both centimeters and inches
- Built-in water level/inclinometer feature
- Provides a privacy option to not sell or share data
- Appears free to download/test

### Cons

- Measurements are not accurate / off by a lot (consistently reported across reviews)
- UI/scale issues across devices / not responsive to different phone sizes
- Lack of in-app instructions or guidance on how to use the app
- cm metric switch/update problems (not reliably functioning after updates)
- Difficulty selecting correct measurement points / imprecise point placement

## Similar extensions and apps

- [Ruler & Tape Measure Camera](https://chrome-stats.com/d/id6761040203)
- [Measuring Tape: Ruler App](https://chrome-stats.com/d/id6758943177) — 3.30 / 5
- [Ruler: Tape Measure & Level](https://chrome-stats.com/d/id6800170928)
- [Tape Measure with Camera](https://chrome-stats.com/d/id6749004551) — 4.20 / 5
- [Ruler AR](https://chrome-stats.com/d/id6763997265)
- [Ruler, Measuring Tape - AR App](https://chrome-stats.com/d/id1462163605) — 4.30 / 5
- [RulerKit: AR Ruler & Level](https://chrome-stats.com/d/id6762124521)
- [Magic Measure - AR Ruler](https://chrome-stats.com/d/id6473676395)
- [Ruler & Tape Measure – AR Tool](https://chrome-stats.com/d/id6759158611)
- [Camera Ruler ٞ](https://chrome-stats.com/d/id1519778584) — 3.50 / 5
- [Measuring Tape - Ruler](https://chrome-stats.com/d/id6449304841) — 4.00 / 5
- [AR Ruler: Measuring App](https://chrome-stats.com/d/id1559026616)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1555214809)