Camera Protractor vs YouSum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Camera Protractor
Measure angles and lengths of real-world objects using your iPhone's camera. This tool offers a digital protractor and ruler, allowing precise measurements of anything you can capture, from small items to large structures. It features an intuitive interface and is always available.
- Digital protractor and ruler
- Measure real-life objects with camera
- Precise angle measurement (0-180 degrees)
- Intuitive UI design
- Full screen display
- Email support
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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.
YouSum
Get instant, customized summaries of YouTube videos by pasting a link. Automatically generates transcripts and summaries for new videos from channels, breaking language barriers with multilingual support. Easily share and export insights in various formats.
- Instant video summaries
- Automatic channel video summaries
- YouTube video transcription
- Seamless sharing and export
- Multilingual support
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# Unleash the Power of Information with Youtube! ## Key Features: 1. **Instant Summaries** - Paste a YouTube link and get a customized summary in seconds, saving hours of watching! 2. **Auto Summary** - Automatically generates summary when new videos comes of YouTube channels. 3. **Youtube Video Transcription** - Automatically generates text transcripts of no captions YouTube video 4. **Seamless Sharing** - Easily share summaries and insights, supporting copying, editing, and exporting. - Summaries can be exported as PDFs, markdown formats. 5. **Multilingual Support** - Breaks language barriers with support for multiple languages, enabling easy access to diverse cultural content. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: YouSum at Free against Camera Protractor's $4.99. YouSum also leads on rating (5.0 vs 3.8) and update cadence (weekly vs fortnightly). Camera Protractor's advantage is ratings volume (6 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
YouSum is free to download; Camera Protractor costs $4.99 up front. Camera Protractor sells 1 one-off in-app purchase and YouSum sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
YouSum holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Camera Protractor has 6 ratings behind it against 1, so its average is the more settled of the two.
Camera Protractor ships an update fortnightly, YouSum weekly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.
| Parameter | Camera Protractor | YouSum |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.8 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 26.7% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.8 | 15.1 — better |
| Further details — not scored | ||
| Size | 11 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | 华芳 张 | Wai Fung CHUNG |
Customer experience
Camera Protractor
YouSum
In-app purchases
Camera Protractor
- Camera Protractor Pro$6.99
YouSum
- 1 month$4.991 Month
- 1 year$49.991 Year









