Comparison

Protractor vs Measure Toolbox

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

Head to head
About

Protractor

Measure angles precisely using your phone's screen, gyroscope, or camera. Offers smart presets, real-time feedback with high accuracy, and calibration features to adapt to various situations.

Highlights
  • 3-in-1 measurement modes
  • Smart angle presets with alerts
  • Hyper-responsive feedback (≤0.5° accuracy)
  • Auto dynamic compensation calibration
  • Anti-shake technology for motion scenes
  • Screen lock for measurements
Features
Read full description

Ditch bulky tools! Measure angles precisely anywhere with just your phone. *** Features *** ► Full-Scene Precision Measurement * 3-in-1 Modes: Screen Protractor / Gyroscope Protractor/ Camera Protractor, adapt to different scenarios. * Smart Angle Preset: Input target angles for instant deviation alerts. * Hyper-Responsive Feedback: Real-time tracking with ≤0.5° accuracy. ► Triple-Calibration Assurance * Auto Dynamic Compensation: Device-position-aware baseline calibration * Anti-Shake Tech: 80% accuracy boost in motion scenes (Gyroscope Mode) * Screen lock: Freeze measurements instantly to prevent accidental touches. ► Contact Us * Email: ceo@noadit.com

About

Measure Toolbox

Features
Read full description

The Meter is an augmented reality (AR) measuring app that uses the latest AR technology to instantly turn your iPhone or iPad lens into an accurate measuring stick. It can make horizontal and vertical measurements, measuring the length, Angle, height and area of an object. You can also save the measurement results in the historical record, and support download for easy sharing. Contains a collection of many small tools, set AR rangefinder, ruler, protractor, level, compass, flashlight, decibel meter and other tools in one, no longer need to use multiple apps, but only one APP integrated with multiple small tools, can solve small problems in daily life. 1. Ruler: a small tool for measuring length. It supports metric and British systems. 2. Noise meter: Use your phone to detect ambient sound decibels 3. Protractor: a small tool to obtain the Angle of the object, which can be measured by the camera. 4. Hanging picture calibration: a small tool to quickly check whether the pendant in the home is neat. 5. Level instrument: a small tool that can know whether the mobile phone is level by placing it on the test object 6. Compass: Fast and accurate positioning of small tools, no longer lost. 7. Flashlight: Turn on the phone light with one click.

Screenshots

Protractor4 screens
Measure Toolbox4 screens

Verdict

The call

The clearest difference is in-app purchases: Measure Toolbox at none against Protractor's 6. Measure Toolbox also leads on iOS requirement (10.0 vs 17.0). Protractor's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 8 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Protractor sells 6 in-app purchases, starting at $4.99 per month. Measure Toolbox asks for nothing beyond the download.

UpkeepUpdate frequency

Protractor ships an update every 5 weeks, Measure Toolbox every 8 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Protractor versus Measure Toolbox: the parameters behind the verdict, then further details
ParameterProtractorMeasure Toolbox
PriceFreeFree
Rating1.8 (6 ratings) — better—
Positive reviews63.6% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 weeks — betterEvery 8 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.010.0 — better
Further details — not scored
Size7 MB72 MB
Age rating4+4+
DeveloperNoadit, Inc.ShenZhen City XueQin Information Technology Inc.

In-app purchases

6 purchases

Protractor

Subscriptions1
  • VIP3 Days trial$4.991 Month
One-time5
  • Bubble Tea$0.99
  • Sponsor$4.99
  • Coffee$4.99
Show 2 more
  • Sponsor$19.99
  • Sponsor$99.99
None

Measure Toolbox

No in-app purchases

Questions

Is Protractor free?
Protractor is free to download, with in-app purchases available.
Is Measure Toolbox free?
Measure Toolbox is free to download, with no in-app purchases.
Do Protractor or Measure Toolbox have ads?
Measure Toolbox shows ads; Protractor does not.
Which is updated more often, Protractor or Measure Toolbox?
Protractor ships an update every 5 weeks, and Measure Toolbox every 8 months. Most recently, Protractor was updated on October 24, 2026 and Measure Toolbox on October 27, 2026.

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