# Protractor+ — + Angle Meter & Clinometer > Pocket protractor and angle meter for measuring degrees and radians. (iPhone/iPad app by Tue Nguyen Minh.) - Source: https://appshunter.io/ios/app/protractor-plus/id631311541 (this page in markdown: same URL + `.md`) - Developer: [Tue Nguyen Minh](https://appshunter.io/developer/434811167) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.10/5 from 10,412 App Store ratings · 387 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 21 MB - Languages: American English - Released: 2013-04-11 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/protractor-plus/id631311541/reviews.md ## What is Protractor+? Protractor helps you to measure angles quickly and easily. This app turn your iPhone into a handy pocket protractor that can measure angles in both degrees and radians. Features: - Elegant design - Measure in degrees and radians - Intuitive visual control ## Key features - Angle measurement - Degrees and radians - Intuitive visual control - Elegant design - Pocket protractor functionality ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pro Features | $1.99 | one-time | ## What do users think of Protractor+? Overall sentiment: negative **Pros** - 🚀 Quick angle measurement - 👍 Useful for physics labs - 👍 Easy to use **Cons** - 🔒 Degrees feature locked behind paywall - 🐛 Unreliable camera feature - 🔋 Frequent timeouts force upgrade - 💰 Aggressive monetization tactics **Commonly reported bugs** - Camera feature not working as expected - Angle measurements not accurate - Frequent app crashes **Most requested features** - Ability to measure in degrees without upgrade - Improved accuracy and responsiveness - Removal of timeouts and paywalls ## Recent user reviews (10 of 387) All indexed reviews: https://appshunter.io/ios/app/protractor-plus/id631311541/reviews.md ### 1/5 — Was great before update. *2026-06-20, version 2.4.5* This used to work great before the recent update. Now it will only measure between 80-100, or 100-80. I can no longer set my telescope tripod to my latitude of 52degrees because of this. Was going to purchase but will delete instead. ### 1/5 — 不好 *2026-05-04, version 2.4.4* 這個程式一點也不好不能量度 ### 5/5 — Protractor *2026-05-04, version 2.4.4* Protractor works right at finding the right angle. ### 1/5 — TOO LAGGY!!!!! *2026-04-28, version 2.4.4* DID NOT WORK AT ALL ### 1/5 — Do not recommend *2026-04-14, version 2.4.4* 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 ### 1/5 — Blue *2026-04-04, version 2.4.4* Don’t ask for a review three seconds after downloading the app ### 5/5 — Good! *2026-03-28, version 2.4.4* It helped me finished my homework. ### 5/5 — Good stuff *2026-02-28, version 2.4.4* Really good stuff ### 1/5 — No vale para nada *2026-02-12, version 2.4.4* No vale para nada. Dinero tirado ### 1/5 — Basura total *2026-02-03, version 2.4.4* Basura total no sirve de nada al tomar foto es una caca ## Frequently asked questions about Protractor+ ### What does this app do? This application turns your iPhone into a pocket protractor for measuring angles. It allows you to quickly and easily determine angles in both degrees and radians. ### What are the key features? Key features include the ability to measure angles in both degrees and radians, an intuitive visual control for easy use, and an elegant design for a pleasant user experience. ### Is this app free to use? The app is free to download and use, with the option for in-app purchases. This allows users to access additional features or unlock the full functionality. ### What devices is this app compatible with? The app is designed for iPhone devices. Specific iOS version compatibility is typically detailed in the app store listing. ### What are common use cases for this app? Common use cases include DIY projects, woodworking, construction, educational purposes, or any situation where precise angle measurement is needed quickly and conveniently. ## Version history (last 5 releases) ### 2.4.5 — 2026-06-01 Minor bug fixes ### 2.4.4 — 2025-11-14 Minor bug fixes ### 2.4.3 — 2025-10-25 Minor bug fixes ### 2.4.2 — 2024-01-02 Minor bug fixes ### 2.4.1 — 2023-07-19 Minor bug fixes ## Apps similar to Protractor+ | App | Rating | Price | Category | | --- | --- | --- | --- | | [Measure Angles - Bubble Level](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311) | 4.2 (1,969) | Free | Utilities | | [Bubble Level: AR, Angle Finder](https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382) | 4.5 (689) | Free | Utilities | | [Bubble Level for iPhone](https://appshunter.io/ios/app/bubble-level-for-iphone/id465613917) | 4.6 (111,638) | Free | Utilities | | [Bubble Level Tool - Digital](https://appshunter.io/ios/app/bubble-level-tool-digital/id1662018802) | 4.4 (2,456) | Free | Utilities | | [ToolBox: AR Ruler, Level Tool](https://appshunter.io/ios/app/toolbox-ar-ruler-level-tool/id1349659723) | 4.4 (1,015) | Free | Utilities | | [Tape Measure & Ruler Арр](https://appshunter.io/ios/app/tape-measure-and-ruler/id1453537222) | 4.2 (4,291) | Free | Utilities | ## More apps by Tue Nguyen Minh - [Flower Board™](https://appshunter.io/ios/app/flower-board/id434811164) - [Flower Board HD - A relaxing puzzle game](https://appshunter.io/ios/app/flower-board-hd-a-relaxing-puzzle-game/id450677428) - [Toolbox™](https://appshunter.io/ios/app/toolbox/id615380696) - [Bubble Level Plus+](https://appshunter.io/ios/app/bubble-level-plus-plus/id618064263) - [Big Stopwatch™](https://appshunter.io/ios/app/big-stopwatch/id622509131) - [Ruler®](https://appshunter.io/ios/app/ruler/id623207505) All apps by Tue Nguyen Minh: https://appshunter.io/developer/434811167 ## Related topics [angle protractor](https://appshunter.io/ios/topics/angle-protractor) · [degree finder protractor](https://appshunter.io/ios/topics/degree-finder-protractor) · [degree protractor](https://appshunter.io/ios/topics/degree-protractor) · [contact angle measurement](https://appshunter.io/ios/topics/contact-angle-measurement) · [angle measurement](https://appshunter.io/ios/topics/angle-measurement) · [easy isometric](https://appshunter.io/ios/topics/easy-isometric) · [protractor angle measure tool](https://appshunter.io/ios/topics/protractor-angle-measure-tool) · [protractor app](https://appshunter.io/ios/topics/protractor-app) · [digital protractor](https://appshunter.io/ios/topics/digital-protractor) · [angle measure tool](https://appshunter.io/ios/topics/angle-measure-tool) · [protractor app for angle measurements](https://appshunter.io/ios/topics/protractor-app-for-angle-measurements) · [acute angle](https://appshunter.io/ios/topics/acute-angle) · [free angle measure](https://appshunter.io/ios/topics/free-angle-measure) · [angle finder tool](https://appshunter.io/ios/topics/angle-finder-tool) · [pinion angle finder](https://appshunter.io/ios/topics/pinion-angle-finder) · [free protractor app](https://appshunter.io/ios/topics/free-protractor-app) · [digital angle gauge](https://appshunter.io/ios/topics/digital-angle-gauge) · [angle meter pro](https://appshunter.io/ios/topics/angle-meter-pro) · [digital angle finder](https://appshunter.io/ios/topics/digital-angle-finder) · [angle measuring tool](https://appshunter.io/ios/topics/angle-measuring-tool) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*