Report updated Apr 18, 2026

Protractor is an established tools app that is completely free. With a 4.5/5 rating from 952 reviews, it shows polarized user reception.

What is Protractor?

Protractor is a utility-focused application designed to provide a simple, digital interface for measuring angles. Positioned within the Tools category, the app targets casual users, students, and DIY enthusiasts who require a straightforward, on-the-go solution for basic geometric measurements. Currently, the app maintains a minimalist value proposition, offering a singular, standard feature set without complex monetization or premium tiers. Its market positioning is highly vulnerable due to the presence of established, feature-rich competitors and the increasing prevalence of native OS measurement tools.

Current Momentum

v1.0

This update includes important bug fixes and performance improvements to ensure the app runs reliably and efficiently. We’re continuously working to enhance your experience and appreciate your feedback as we move forward.

Active Nemesis

Protractor+

Protractor+

By Tue Nguyen Minh

Other Rivals

Measure
Angle Meter
Perfect Edge Angle Finder
Clinometer  +  bubble level
Angle Meter PRO
AR Ruler: Digital Tape Measure
Bubble Level®
Measure X PRO: Smart Pro Tools

7-Day Rank Pulse 🇺🇸

Tools

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

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What Are The Key Features?

Angle MeasurementStandard

Digital tool to measure angles using the device's interface

How much does it cost?

Free
  • Completely free to use

The app appears to be a simple, ad-supported or utility-focused tool with no visible monetization strategy or premium tiers.

What is the competitive landscape for Protractor?

How's The Tools Market?

Market outlook for this category

Available very soon

The rivals identified

The outtake for Protractor

Strengths to defend, gaps to attack

Core Strengths

  • Zero-cost barrier to entry
  • Minimalist design
  • Focused utility

Critical Frictions

  • No monetization strategy
  • Stagnant development
  • Lack of user engagement
  • Basic feature set

Growth Levers

  • AR integration
  • Expansion into a measurement suite
  • Educational market targeting

Market Threats

  • Native OS measurement tools
  • Established competitors
  • Low discoverability

Key Takeaways

Protractor is an established tools app that is completely free. With a 4.5/5 rating from 952 reviews, it shows polarized user reception.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Protractor, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Protractor Intelligence Report.” Updated Apr 18, 2026. https://marlvel.ai/apps/protractor

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Data licensed under CC-BY-NC 4.0