# Camera Protractor: Angle Meter — Photo, Level, Slope & Pitch > Digital protractor and ruler app for measuring real-world objects with your iPhone camera. (iPhone/iPad app by 华芳 张.) - Source: https://appshunter.io/ios/app/camera-protractor-angle-meter/id614594487 (this page in markdown: same URL + `.md`) - Developer: [华芳 张](https://appshunter.io/developer/586041482) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 3.80/5 from 6 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 15.8 · 6 MB - Languages: Chinese (Simplified, China), German (Germany), Italian, Japanese, French (France), Chinese (Traditional, Taiwan), American English, European Spanish - Released: 2013-03-22 - Data updated: 2026-09-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/camera-protractor-angle-meter/id614594487/reviews.md ## What is Camera Protractor? Turn your iPhone or iPad into a camera protractor, photo angle meter, and surface inclinometer. Measure angles from photos, live camera views, or real-world surfaces in seconds. Check slope, roof pitch, and miter cuts, save your measurements, and share the results. Three ways to measure. One simple angle toolkit. THREE WAYS TO MEASURE PHOTO Choose a photo from your library or take a new one, then place three points to measure an angle. CAMERA Use the live camera protractor, freeze the view, and fine-adjust the measurement points for greater precision. SURFACE Use your iPhone or iPad as an inclinometer to measure tilt from horizontal, slope percentage, and roof pitch. POWERFUL MEASUREMENT TOOLS • Measure minor and reflex angles • Fine-adjust measurement points • Pinch to zoom for precise placement • Measure slope percentage • Calculate roof pitch • Set a custom zero reference • Hold a measurement • Calibrate the level sensor • Save measurements to History • Add notes to saved measurements • Export measurement images • Share your results CAMERA PROTRACTOR PRO Upgrade once to unlock additional professional tools: • Edge Snap — automatic edge assistance • Multiple Angles — measure up to 10 angles on one image • Miter Calculator — convert measured corners into saw settings • Projects — organize related measurements • Tags — label and organize your measurements • PDF Reports — create professional measurement reports • Adjust a Copy — reuse a saved measurement without changing the original One-time purchase. No subscription. USEFUL FOR Camera Protractor is useful for: • DIY and home improvement • Woodworking and carpentry • Construction • Roofing • Furniture and installation work • Measuring slopes and inclines • Checking angles from photos • Everyday angle measurements PRIVACY Your measurements stay on your device. NOTE Photo measurements describe angles in the image plane. Camera perspective can change the apparent angle of real-world objects. ## Key features - Digital protractor and ruler - Measure real-life objects with camera - Precise angle measurement (0-180 degrees) - Intuitive UI design - Full screen display - Email support ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Camera Protractor Pro | $0.99 | one-time | ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/camera-protractor-angle-meter/id614594487/reviews.md ### 1/5 — 乱扣费 *2018-11-08* 什么东西，昨天给我扣了6元，大家不要下，别被它坑了 ### 5/5 — Wonderful ! *2016-07-27* As an architect I often have to make quick sketches for my clients. This is a wonderful tool for estimating ground slopes and grade heights. Recommend it highly. ### 1/5 — Кал *2015-10-27* Говна кусок, а не линейка! На 9 см по линейке приложения, приходится 10,2см реальной линейки! Айфон 6. ### 1/5 — Question of Scale *2015-07-06* On iPhone 6+ the ruler part is wildly inaccurate. Also feel the protractor could have had something to indicate the red guide line is perfectly vertical/horizontal so you can measure angles of objects that don't have two obvious edges, or to see how far something's out of 'plumb'. ### 2/5 — Lineal passt nicht *2015-03-02* Ich weiss nicht worauf das Lineal angepasst ist, aber beim iPhone 6 passen die Maße überhaupt nicht. ### 1/5 — Kinda useful, but requests microphone *2015-03-01* It's kind of useful for some things, I used it for a math project. However the app requests to use the microphone, and seems to be recording something even when the camera feature is off (red banner at the top, like when on a Skype video call). I don't know why it needs to do that or why it needs to record audio. Big big privacy issue. ### 3/5 — Языки *2015-02-28* Хотелось бы видеть еще и русский язык в приложении. ### 1/5 — линейка не правильная *2015-01-25* линейка какая-то большая((( ### 3/5 — Wo ist die Wasserwaage? *2015-01-24* Keine schlechte App, aber wo ist die Wasserwaage? Mit einer integrierten Wasserwaage wäre sie vollständiger. ### 1/5 — My iPad *2014-02-23* My iPad use this 后摄像头不能显示了 SOS ## Frequently asked questions about Camera Protractor ### What can Camera Protractor measure? Camera Protractor can measure angles from 0 to 180 degrees and lengths of real-life objects. You can measure anything you can capture with your iPhone's camera, from small items like matchboxes to larger structures. ### Does Camera Protractor have ads? No, Camera Protractor is ad-free, as explicitly stated in its features. This ensures an uninterrupted user experience while measuring. ### What devices and iOS versions does Camera Protractor support? Camera Protractor supports iPhone and iPod touch devices, specifically mentioning iPhone 4, 4s, 5, iPod touch 4, and 5. It is compatible with iOS 5.0 and iOS 6.0. ### How does the camera function work in Camera Protractor? The app provides a camera function that allows you to shoot a live picture of an object. You can then immediately measure large objects directly from the captured image. ### Is Camera Protractor suitable for professional use? The app is described as a 'REAL TOOL. NOT A TOY.', suggesting it is intended for practical, precise measurements rather than casual use. However, its rating of 3.8 stars from 6 ratings indicates mixed user sentiment. ### How often is Camera Protractor updated? The last update for Camera Protractor was on June 14, 2013, with the latest version being 1.2. This suggests infrequent updates. ### Can I use Camera Protractor as a ruler? Yes, in addition to being a protractor, the app can also function as a rule, allowing you to measure lengths of objects. ### What is the age rating for Camera Protractor? Camera Protractor has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 3 releases) ### 1.5 — 2026-09-24 Camera Protractor is now more powerful and easier to use. • Improved angle measurement and fine adjustment • Multiple-angle measurement support • Edge Snap assistance • Miter Calculator • Projects and tags • PDF measurement reports • Adjust a saved measurement as a copy • Improved iPhone and iPad layouts • General UI and reliability improvements Thanks for using Camera Protractor! ### 1.2 — 2013-06-14 Improve UI. Fix Crash bug. Fix bug on iPhone5. Support New Language - Italian. Support New Language - French. Support New Language - German. Support New Language - Simplified Chinese. Support New Language - Korean. Support New Language - Japanese. Support New Language - Traditional Chinese. Support pause decibel at startup. Support clear graph by double-tap. All upgrades are totally free! Want us to keep the free updates coming soon? 5-star ratings and nice comments allow us to keep providing our existing users with new features. Did you know you can rate us again for each version? And if you need furthering assistant, please contact us by Email: ipixeltech@gmail.com. Thank you! ### 1.0 — 2013-03-22 No release notes. ## More apps by 华芳 张 - [Fisheye Camera - Retro Lens](https://appshunter.io/ios/app/fisheye-camera-retro-lens/id586041479) - [VideoRecord: Pause & Resume](https://appshunter.io/ios/app/videorecord-pause-and-resume/id618657110) - [Decibel Meter Plus Pro](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476) - [Decibel Meter Plus](https://appshunter.io/ios/app/decibel-meter-plus/id648142711) - [Fisheye Plus-Retro Photo Video](https://appshunter.io/ios/app/fisheye-plus-retro-photo-video/id659276619) All apps by 华芳 张: https://appshunter.io/developer/586041482 --- *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 2026-09-24.*