Camera Protractor vs RICH SOLAR
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.
RICH SOLAR
Monitor and control RICH SOLAR products like lithium batteries and solar charge controllers directly from your smartphone. Update device firmware and explore features through a convenient demo mode.
- Live data monitoring
- Device configuration
- Firmware updates
- Demo mode for product exploration
- Bluetooth connectivity
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RICH SOLAR App Monitor compatible RICH SOLAR devices and adjust supported settings from your phone. Connect via Bluetooth to compatible lithium batteries, solar charge controllers, inverters, and other supported devices to view real-time operating data, check device status, review historical performance, and configure supported settings. Live Data View real-time operating data, device status, and key system information from connected RICH SOLAR devices. Configure Settings Adjust supported operating parameters and device settings directly from your phone. Historical Data Review operating history and performance data to better understand system performance over time. Fault Status View current fault codes and system status information to help identify issues and support reliable system operation.
Screenshots
Verdict
The clearest difference is price: RICH SOLAR at Free against Camera Protractor's $4.99. RICH SOLAR also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 1). Camera Protractor's advantage is ratings volume (6 vs 1). On update cadence, ads, monetization model and device support 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
RICH SOLAR is free to download; Camera Protractor costs $4.99 up front. Camera Protractor sells 1 one-off in-app purchase. RICH SOLAR asks for nothing beyond the download.
RICH SOLAR 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.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | Camera Protractor | RICH SOLAR |
|---|---|---|
| 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 | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.8 | 15.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | 华芳 张 | Rich Solar, Inc. |
Customer experience
Camera Protractor
RICH SOLAR
In-app purchases
Camera Protractor
- Camera Protractor Pro$6.99
RICH SOLAR
No in-app purchases
Questions
Is Camera Protractor free?
Is RICH SOLAR free?
Which has better reviews, Camera Protractor or RICH SOLAR?
Do Camera Protractor or RICH SOLAR have ads?
Which is updated more often, Camera Protractor or RICH SOLAR?
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