Photo Protractor AngleWise vs Protractor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Protractor AngleWise
Measure angles directly from your photos. Import or capture an image, then use draggable lines to identify angles and their supplementary values. Save your work with notes and export annotated images for field use or visual checks.
- Measure angles from photos
- Import or capture images
- Draggable reference lines
- Display smaller and supplementary angles
- Add notes to images
- Export annotated images
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Photo Protractor AngleWise measures angles from photos with two draggable reference lines. Take a picture or import an existing photo, align two lines on visible edges, and read the smaller angle plus the supplementary angle instantly. Add a note, export the annotated image, and keep the workflow on device. Built for everyday field work and visual checks: - tree branch to trunk - beam to column - roof edge to wall - furniture tilt and alignment - classroom and workshop geometry references Why AngleWise: - photo-based angle measurement - camera capture and photo import - precise manual line adjustment - note overlay on the exported image - no account required - no cloud dependency - Pro export tools for cleaner professional annotated images
Protractor
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PAID ACCESS REQUIRED Protractor is a paid app. A weekly or yearly auto-renewable subscription, or a one-time lifetime purchase, is required to use every feature after onboarding. There is no free version and no free trial. Measure any angle without a physical protractor. Drag two arms across the screen, aim the camera at a real object, or rest your phone on a slope and read the tilt live. Most angle apps give you one trick. Protractor gives you three measuring surfaces in one app — an on-screen protractor for photos and drawings, a see-through camera overlay for real objects, and a motion-sensor inclinometer for surfaces you can put your phone on. Every reading comes out in degrees, radians or percent grade, and roof work gets the rise-in-12 pitch on the same screen. WHAT YOU GET - Read the exact degree of any corner on a photo or drawing by dragging two arms and the vertex onto it - Point the camera at a wall, ramp, roof edge or shelf and measure the angle right on the live view - Turn your phone into a digital level that shows pitch, roll, percent grade and roof pitch as rise:12 at once - Lock a reading with Hold or Freeze so the number stays put while you climb down or move the phone - Keep every measurement in History with a photo thumbnail, plus your saved count, average and widest angle - Switch between degrees, radians and grade in one tap, with a built-in conversion table for common values PERFECT FOR - DIY and home projects: shelves, picture rails, ramps, furniture - Roofing, decking and construction: slope, grade and pitch checks - Woodworking and metalwork: bevels, miters and corner angles - Students and teachers measuring angles on diagrams and photos WHY NOT JUST USE A PLASTIC PROTRACTOR A plastic protractor only works on paper, only reads what fits inside its arc, and is never in your pocket when the roof needs checking. This one measures on a photo, through the camera, or straight off a surface — and it remembers every reading instead of you writing them on a scrap of wood. PRIVACY Everything is measured and stored on your device. No account, no sign-up, no cloud upload of your photos or readings. The camera feed is used only to draw the protractor on top of it, and the app works with no internet connection. FULL ACCESS Full access unlocks the camera protractor, the live inclinometer, saved measurement history and all angle units. It is offered as a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Your exact plan and price are shown before you confirm, and subscriptions renew until cancelled in your App Store settings. Open Protractor, point it at the next angle you need, and get the number in seconds. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? Email tphuc.work@gmail.com
Screenshots
Verdict
The clearest difference is update cadence: Photo Protractor AngleWise at every 8 days against Protractor's every 6 weeks. On price, ads, in-app purchases 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. Photo Protractor AngleWise sells 1 one-off in-app purchase and Protractor sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Photo Protractor AngleWise ships an update every 8 days, Protractor every 6 weeks. The most recent releases landed on June 27, 2026 and September 24, 2026 respectively.
| Parameter | Photo Protractor AngleWise | Protractor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 佳辰 汪 | Phuc Pham |
In-app purchases
Photo Protractor AngleWise
- Lifetime Unlock$4.99
Protractor
- Incline Gauge Weekly$4.997 Days
- Roof Pitch Yearly$24.991 Year
- Bevel & Degree, Pay Once$49.99





