Ruler •

Name: Ruler •
Rating: 4.2 (382 reviews)
Author: Matrix Software Co.

By: Matrix Software Co.

Includes Camera (AR) Ruler

Features & Capabilities

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.

User Growth & Download Statistics

App Photography Design Education Navigation & Mapping

By:

Matrix Software Co.

Rating:

4.20

(382) 2 new ratings

Version:

1.5 Last updated: 2026-04-16

Version code:

884576968

Creation date:

2021-03-05

Compatible devices:

Size:

6.14MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-29

Compare stats and ranking:

Ranking

# 92,436 ▼ 45

Other rankings

#25 in include keyword 18 ▲ 1#86 in make it shorter keyword 25 ▲

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Matrix Software Co.

Apple Apps Store

https://apps.apple.com/us/app/ruler/id1555214809

Website:

https://apps1.matrix-soft.org

User Reviews

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

Recent reviews

Simple basic app. Displays inches and cm scales. Nice basic caliper usage too and bonus spirit level. But no clue how to use AR mode. Camera on, screen shows green grids and nothing more. No save or print ability. Unable to select objects. Unable to back out of AR mode. Using iphone 15 pro max with os 26.5.