Comparison

Camera Protractor vs RICH SOLAR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Digital protractor and ruler
  • Measure real-life objects with camera
  • Precise angle measurement (0-180 degrees)
  • Intuitive UI design
  • Full screen display
  • Email support
Features
Read full description

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.

About

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.

Highlights
  • Live data monitoring
  • Device configuration
  • Firmware updates
  • Demo mode for product exploration
  • Bluetooth connectivity
Features
Read full description

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

Camera Protractor4 screens
RICH SOLAR4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Camera Protractor versus RICH SOLAR: the parameters behind the verdict, then further details
ParameterCamera ProtractorRICH SOLAR
Price$4.99Free — better
Rating3.8 (6 ratings)5.0 (1 ratings) — better
Positive reviews26.7% of reviews—
Number of ratings6 — better1
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.815.0 — better
Further details — not scored
Size11 MB37 MB
Age rating4+4+
Developer华芳 张Rich Solar, Inc.

Customer experience

Camera Protractor

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews15 reviews
Positive26.7%
Neutral20.0%
Negative53.3%

RICH SOLAR

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Camera Protractor

One-time1
  • Camera Protractor Pro$6.99
None

RICH SOLAR

No in-app purchases

Questions

Is Camera Protractor free?
Camera Protractor costs $4.99, and also offers in-app purchases.
Is RICH SOLAR free?
RICH SOLAR is free to download, with no in-app purchases.
Which has better reviews, Camera Protractor or RICH SOLAR?
RICH SOLAR is rated higher. Camera Protractor averages 3.8 out of 5 from 6 ratings, while RICH SOLAR averages 5.0 from 1 ratings.
Do Camera Protractor or RICH SOLAR have ads?
Neither Camera Protractor nor RICH SOLAR shows ads.
Which is updated more often, Camera Protractor or RICH SOLAR?
Camera Protractor ships an update fortnightly, and RICH SOLAR fortnightly. Most recently, Camera Protractor was updated on November 6, 2026 and RICH SOLAR on November 4, 2026.

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