Comparison

Protractor vs Level Tool

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

Head to head
About

Protractor

Features
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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 โ€” 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 โ€” 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

About

Level Tool

Features
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Turn your iPhone into the ultimate measuring toolkit. Nivelo packs 11 precision instruments into one app โ€” no ads cluttering the screen, no unnecessary permissions, just tools that work. WHAT'S INSIDE - Bubble Level โ€” Check any surface in seconds. Three modes: surface, 360-degree, and 3-in-1 view. - Angle Finder โ€” Measure angles with real-time precision using your device sensors. - Protractor โ€” Full on-screen protractor for quick angle readings. - 3D Angle Finder โ€” Measure pitch, roll, and yaw simultaneously in three dimensions. - Laser Level โ€” Project virtual laser lines through your camera for alignment on any wall. - Ruler โ€” Accurate on-screen ruler in centimeters and inches. - Metal Detector โ€” Use the magnetometer to detect metal objects nearby. - Inclinometer โ€” Measure slopes and tilts with degree accuracy. - Compass โ€” Full digital compass with cardinal directions and degree heading. - Plumb Line โ€” Check vertical alignment with a simulated plumb bob. - Barometer โ€” Monitor atmospheric pressure with the built-in altimeter sensor. BUILT FOR REAL WORK Haptic feedback lets you feel when a surface is level. Turn on the flashlight when measuring in dark spaces. Sound alerts confirm level status without looking at the screen. Calibrate sensors for accuracy on your specific device. One app instead of a toolbox full of separate downloads. Whether you're hanging a picture frame, checking a shelf, or working on a construction site โ€” Nivelo has the right tool ready. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Protractor4 screens
Level Tool4 screens

Verdict

The call

The clearest difference is in-app purchases: Level Tool at none against Protractor's 3. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Protractor sells 3 in-app purchases, starting at $4.99 per 7 days. Level Tool asks for nothing beyond the download.

Scorecard1 real difference ยท 5 level
Protractor versus Level Tool: the parameters behind the verdict, then further details
ParameterProtractorLevel Tool
PriceFreeFree
Update frequencyEvery 6 weeksโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size5 MB3 MB
Age rating4+4+
DeveloperPhuc PhamJovan Milenkovic

In-app purchases

3 purchases

Protractor

Subscriptions2
  • Incline Gauge Weekly$4.997 Days
  • Roof Pitch Yearly$24.991 Year
One-time1
  • Bevel & Degree, Pay Once$49.99
None

Level Tool

No in-app purchases

Questions

Is Protractor free?
Protractor is free to download, with in-app purchases available.
Is Level Tool free?
Level Tool is free to download, with no in-app purchases.
Do Protractor or Level Tool have ads?
Neither Protractor nor Level Tool shows ads.

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