Comparison

Angle Finder vs Protractor

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

Head to head
About

Angle Finder

This utility app measures angles, checks surface flatness, and provides real-size measurements using your phone's sensors. It's ideal for home improvement, DIY projects, and educational purposes, offering accurate results offline with an intuitive interface.

Highlights
  • Real-time angle measurement
  • Surface flatness check
  • On-screen ruler for real-size measurements
  • Metric and imperial units
  • Offline functionality
  • Intuitive interface
Features
Read full description

Angle Finder is the ultimate level tool for measuring angles, checking surface flatness, and taking real-size measurements—all from your phone. Whether you're working on home improvement, DIY projects, or need quick leveling anywhere, Angle Finder delivers fast, accurate results without extra equipment. Key Features • Measure angles with real-time sensor precision • Check surface flatness (horizontal and vertical) • Use the on-screen ruler for real-size measurements • Both metric (cm) and imperial (feet/inch) units • Fully offline, no internet connection required • Clean, intuitive interface with live feedback Why Angle Finder -Lightweight and fast with no unnecessary extras -Works great for DIY, carpentry, and home projects -Helpful for geometry, trigonometry, and math learning -Designed for accuracy with minimal setup -A modern level tool that’s simple yet powerful Built for DIYers, students, math enthusiasts, and anyone who values accuracy, Angle Finder removes the need for bulky tools or guesswork. It combines simplicity with precision, making it the go-to solution for leveling tasks at home, in the workshop, or out in the field. From hanging shelves perfectly straight to aligning furniture or verifying slope angles, Angle Finder gives you the accuracy you need in seconds. No more trial and error—just open the app and get precise measurements instantly. Angle Finder is the smart level tool you can rely on for quick, accurate results. Whether you're checking angles, leveling surfaces, or estimating real-world lengths, it empowers you to work with confidence, right from your phone. Privacy policy: https://www.onerack.nl/apps/cat-translator/privacy-policy Terms of service: https://www.onerack.nl/apps/cat-translator/terms-and-conditions

About

Protractor

Features
Read full description

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

Angle Finder4 screens
Protractor4 screens

Verdict

The call

Angle Finder and Protractor are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Angle Finder sells 3 in-app purchases, starting at $7.99 per 7 days 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.

UpkeepUpdate frequency

Angle Finder ships an update every 3 weeks, Protractor every 6 weeks. The most recent releases landed on September 28, 2026 and September 24, 2026 respectively.

ScorecardNo meaningful differences
Angle Finder versus Protractor: the parameters behind the verdict, then further details
ParameterAngle FinderProtractor
PriceFreeFree
Rating4.7 (163 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings163 — better—
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size75 MB5 MB
Age rating4+4+
DeveloperOneRackPhuc Pham

In-app purchases

3 purchases

Angle Finder

Subscriptions1
  • Angle Finder Pro – Weekly3 Days trial$7.997 Days
One-time2
  • Angle Finder Pro: Lifetime Discount$19.99
  • Angle Finder Pro – Lifetime$29.99
3 purchases

Protractor

Subscriptions2
  • Incline Gauge Weekly$4.997 Days
  • Roof Pitch Yearly$24.991 Year
One-time1
  • Bevel & Degree, Pay Once$49.99

Questions

Is Angle Finder free?
Angle Finder is free to download, with in-app purchases available.
Is Protractor free?
Protractor is free to download, with in-app purchases available.
Do Angle Finder or Protractor have ads?
Neither Angle Finder nor Protractor shows ads.
Which is updated more often, Angle Finder or Protractor?
Angle Finder ships an update every 3 weeks, and Protractor every 6 weeks. Most recently, Angle Finder was updated on September 28, 2026 and Protractor on September 24, 2026.

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