Protractor Smart vs 70 Degree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor Smart
This app acts as a smart instrument for measuring angles using your device's camera. It offers two free modes for measuring angles on screen or using a plumb bob for slopes, with an additional premium mode for polygon measurements.
- Camera-based angle measurement
- Touch measure mode
- Plumb bob measure for slopes
- Polygon measurement (premium)
- Screenshot functionality
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Protractor - smart instrument to measure angles. Turn on the camera mode and measure the angle of buildings, mountains, or any other object around you. This app includes two free measuring modes: - Touch measure - touch the screen to set the angle (use camera view!). - Plumb bob measure - pendulum - use to determine the slope (remember to calibrate the plumb). In each mode, you can switch to camera view and take measurements of all objects around you. Additional Premium mode: Polygon measurement lets you draw any shape on your screen to check all its angles. Turn on the camera to see the real object through your phone and copy its shape. You can also pick a photo from your gallery or take a new picture to draw a shape on the image. In Premium mode, you can change colors, add helper lines, and switch between different angle units. All modes allows you to make a screenshot of anything on the screen. Enjoy !!!
70 Degree
This utility app helps you measure angles with your iPhone. It provides notifications when a target angle is reached, with options for visual and auditory alerts.
- Angle degree measurement
- Customizable angle alerts
- Visual strobe notifications
- Auditory alerts
- Vibration alerts
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70degree can notify you when you have reached your desired angle, using red strobe color with a choice of sound, vibrate or both! Measure angle degree using iPhone has never been easier! Hope you enjoy using 70degree!
Screenshots
Verdict
The clearest difference is rating: Protractor Smart at 4.6 against 70 Degree's 2.9. Protractor Smart also leads on ads (none vs shown) and review sentiment (44% vs 20%). 70 Degree's advantage is in-app purchases (none vs 1) and update cadence (every 6 months vs every 21 months). On price 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
Both are free to download. Protractor Smart sells 1 one-off in-app purchase. 70 Degree asks for nothing beyond the download.
Protractor Smart holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: Protractor Smart has 242 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 44% of Protractor Smart's written reviews are positive against 20% of 70 Degree's.
Protractor Smart ships an update every 21 months, 70 Degree every 6 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.
| Parameter | Protractor Smart | 70 Degree |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (242 ratings) — better | 2.9 (10 ratings) |
| Positive reviews | 43.6% of reviews — better | 20.0% of reviews |
| Number of ratings | 242 — better | 10 |
| Update frequency | Every 21 months | Every 6 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | ExaMobile S.A. | sekleung chang |
Customer experience
Protractor Smart
70 Degree
Bugs and requests
Protractor Smart
Reported bugs
8 issues- App loads indefinitely
- App does not launch after iOS updates
- Stuck on loading screen
- Photo upload not possible in premium version
- Upside-down protractor on iOS
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- Phone locks during use
- Camera mode is terrible and inaccurate
- Poor calibration
Requested features
6 requests- Improve camera function (light, zoom)
- Add automatic hold function
- Increase digital readout size
- Add more skins/cosmetics
- Option to remove ads
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- Fix upside-down protractor on iOS
70 Degree
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor Smart
- AdBlock - Remove ads$1.99
70 Degree
No in-app purchases
Questions
Is Protractor Smart free?
Is 70 Degree free?
Which has better reviews, Protractor Smart or 70 Degree?
Do Protractor Smart or 70 Degree have ads?
Which is updated more often, Protractor Smart or 70 Degree?
Other comparisons
