Protractor+

Name: Protractor+
Rating: 4.1 (10405 reviews)
Author: Tue Nguyen Minh

By: Tue Nguyen Minh

+ Angle Meter & Clinometer

Features & Capabilities

Protractor+ turns your device into a pocket protractor with a sleek design, letting you measure angles quickly in degrees or radians using an intuitive visual control.

Designed for students, designers, and engineers, this extension offers a portable angle meter and clinometer right in your browser, simplifying quick geometric measurements.

User Growth & Download Statistics

App Developer Tools Education Navigation & Mapping

By:

Tue Nguyen Minh

Rating:

4.10

(10,405) 12 new ratings

Version:

2.4.5 Last updated: 2026-06-01

Version code:

886366341

Creation date:

2013-04-11

Compatible devices:

Size:

20.64MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 18,784 ▲ 22

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:

Tue Nguyen Minh

Apple Apps Store

https://apps.apple.com/us/app/protractor/id631311541

Website:

http://www.phoenixmobileonline.com

User Reviews

Overall mixed: a few users praise accuracy and educational value, but the majority complain about paywalls to see degrees, heavy ads and upgrade prompts, reliability issues (often not measuring correctly or only rad), a very short or non-existent free trial, and limited functionality (in-app camera only, no measurement from existing photos).

Pros

Accurate angle measurement when the app is functioning.
Useful for beginners and amateur learners of geometry.
Positive experiences from users when features work (really good stuff, awesome tool, excellent app for amateurs).

Cons

Must upgrade to see degrees; paywall blocks core functionality.
Ads and upgrade prompts are persistent, even after attempting to pay for removal.
Reliability issues: app often doesn't work, sometimes only rad measurements.
Free trial is very short or effectively non-existent, making evaluation difficult.
Limited functionality: usage restricted to in-app camera and rad-only measurements; cannot measure from existing photos; orientation and usability issues.

Recent reviews

Protractor works right at finding the right angle.

by Ra*****, 2026-05-04

DID NOT WORK AT ALL

by EI*****, 2026-04-28

My screen is sideways so it must be the the camera but only in this app please help me find a better app so my homework is possible when I try fixing it it goes the wrong way help