Protractor is an end-to-end test framework for Angular and AngularJS applications.
Best Smart Protractor Alternatives ranked by AI · updated Aug 2026
Smart Protractor is a mobile angle-measurement tool that uses the device camera and sensors to estimate angles. It is intended for Android users who want a compact toolkit for everyday measurements.
Top 6 Smart Protractor alternatives
GeoGebra is dynamic mathematics software that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus.
Clinometer + Bubble Level is a mobile inclinometer and spirit-level app for measuring slopes and checking horizontal or vertical alignment. It is...
Pros
- Better suited to slope and alignment checks than a basic angle app
- Includes both inclinometer and bubble-level modes
- Works well for practical construction and household tasks
Cons
- Focused on inclination rather than full protractor geometry
- Sensor readings still require calibration on some phones
- Interface is more utilitarian than polished design apps
Free with in-app purchases
vProtractor is a digital protractor for measuring and displaying angles on a touchscreen device. It is intended for students, makers, and general...
Pros
- Provides a dedicated protractor interface rather than a general measuring toolkit
- Designed for quick angle checks on touchscreen devices
- More portable than carrying a physical protractor
Cons
- Less capable than full sensor-based measurement apps
- Limited evidence of current development and platform support
- Not suitable for advanced surveying or technical drawing workflows
5
Measure
Apple
Measure is Apple's augmented-reality measuring app for compatible iPhone and iPad devices. It supports physical dimensions and level checks, making it useful...
Pros
- Free on supported Apple devices
- AR measurement is more versatile than a dedicated angle-only tool
- Integrated level feature helps with alignment tasks
Cons
- Limited to Apple devices with supported sensors
- AR results can vary with lighting and surface visibility
- Less specialized for standalone protractor workflows
6
Theodolite
Hunter Research & Technology
Theodolite is a professional field-data app combining a compass, GPS, inclinometer, and camera viewfinder. It targets hikers, surveyors, engineers, and other users...
Pros
- Far more capable for field work than a basic smart protractor
- Combines angle, heading, elevation, GPS, and photo annotations
- Useful for recording measurements with visual context
Cons
- More expensive than simple protractor apps
- Steeper learning curve than 70 Degree
- Available primarily for Apple platforms
One-time purchase
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