Protractor Smart vs Visual Protractor
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 !!!
Visual Protractor
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As 360° and 180° Protractor, You can measure with your Camera View on screen.It can be used to cut cakes and pizzas in equal parts, and to measure the angle of concern in daily life.
Screenshots
Verdict
The clearest difference is in-app purchases: Visual Protractor at none against Protractor Smart's 1. Visual Protractor also leads on update cadence (every 5 months vs every 21 months). On price, ads, 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
Both are free to download. Protractor Smart sells 1 one-off in-app purchase. Visual Protractor asks for nothing beyond the download.
Protractor Smart ships an update every 21 months, Visual Protractor every 5 months. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.
| Parameter | Protractor Smart | Visual Protractor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (242 ratings) — better | — |
| Positive reviews | 40.4% of reviews | — |
| Number of ratings | 242 — better | — |
| Update frequency | Every 21 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 11 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ExaMobile S.A. | TAKASHI SASAKI |
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
Visual Protractor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor Smart
- AdBlock - Remove ads$1.99
Visual Protractor
No in-app purchases
Questions
Is Protractor Smart free?
Is Visual Protractor free?
Do Protractor Smart or Visual Protractor have ads?
Which is updated more often, Protractor Smart or Visual Protractor?
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