# Ruler®

> + Photo Ruler & AR Measure

Canonical page: [https://chrome-stats.com/d/id623207505](https://chrome-stats.com/d/id623207505)

## Overview

- **ID:** `id623207505`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tue Nguyen Minh
- **Category:** Utilities
- **Rating:** 4.30 / 5 (35,099 ratings)
- **Version:** 3.8.5
- **Last updated:** 2026-01-02
- **First published:** 2013-03-28
- **Size:** 25 MB
- **Data as of:** 2026-09-17
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/ruler/id623207505)
- **Website:** [http://www.phoenixmobileonline.com/index.html](http://www.phoenixmobileonline.com/index.html)
- **Privacy policy:** [https://phoenixmobileonline.com/privacy/ruler\_pp.html](https://phoenixmobileonline.com/privacy/ruler_pp.html)

## Description

Your pocket-ready ruler toolkit for quick, accurate measurements on the go. Ruler® features a classic ruler, a tape measure, and a camera ruler, with dual units (inches and centimeters) and intuitive precision sliders.

Use AR Measure to capture real-world dimensions with your camera, or enable Photo Measures to attach measurements directly to photos for organized records.

## Rankings

- #8,563 — Overall
- #3 — rule

## Review summary

The app’s core idea and clean design are praised, but frequent complaints focus on monetization barriers (paywalls and subscriptions for basic units), ads, an unusable reference-object method, and accuracy issues. Users also report glitches and feature removals after updates, undermining reliability. Overall, the concept and visuals are liked, but paid access and reliability concerns dominate.

### Pros

- Handy two-unit ruler (inches and centimeters) with a simple, easy-to-use interface.
- Sharp, professional-looking graphics.
- Privacy-friendly feel (users note it doesn’t appear to collect data).

### Cons

- In-app paywalls to access inches/centimeters, often via subscriptions or upfront upgrades.
- Ads in the free version and perceived high cost of upgrades.
- Reference object measurement feature is unusable or impractical.
- Measurements can be inaccurate (reported off by up to ~10%).
- Updates/monetization changes remove features or cause glitches, frustrating users.

## Similar extensions and apps

- [Ruler, AR Tape Measure & Level](https://chrome-stats.com/d/id6780558803)
- [Ruler •](https://chrome-stats.com/d/id1555214809) — 4.20 / 5
- [Ruler - Screen accurate ruler](https://chrome-stats.com/d/id6746461013) — 3.50 / 5
- [AR Ruler: Measuring App](https://chrome-stats.com/d/id1559026616)
- [Air Ruler - Objects Measure](https://chrome-stats.com/d/id6763083628)
- [RulerApp: True-Size Ruler](https://chrome-stats.com/d/id6790299129)
- [RulerMe - Ruler & AR Measure](https://chrome-stats.com/d/id6774600407)
- [Photo Ruler: Measure & Scale](https://chrome-stats.com/d/id6772211057)
- [Ruler ▸](https://chrome-stats.com/d/id6805987132)
- [Ruler: Tape Measure & Level](https://chrome-stats.com/d/id6800170928)
- [RulerKit: AR Ruler & Level](https://chrome-stats.com/d/id6762124521)
- [Camera Measure - PartoMeter](https://chrome-stats.com/d/id689675004) — 3.80 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/id623207505)