# Protractor Angle Measure Tool — Spirit Bubble Level & Slope

> Accurate angle measurement tool for iOS devices with multiple units and alerts. (iPhone/iPad app by Appcellent.)

- Source: https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087 (this page in markdown: same URL + `.md`)
- Developer: [Appcellent](https://appshunter.io/developer/1870956141)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 158 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 79 MB
- Languages: American English, German (Germany), Italian, Japanese, Korean, Polish, Russian, Chinese (Simplified, China), European Spanish, Swedish and 1 more
- Released: 2025-03-26
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087/reviews.md

## What is Protractor Angle Measure Tool?

Precision Angle Measurement in Your Pocket: Protractor Measuring Angle

Struggling with precise angle measurements for your DIY projects, construction work, or home renovations? Tired of carrying bulky tools when you need to measure angles on the go? Whether you're a carpenter, architect, engineer, or passionate DIY enthusiast, Protractor Measuring Angle transforms your iOS device into an accurate, versatile angle measurement tool that delivers professional-grade results.

With cutting-edge sensor technology and an intuitive interface, our app provides instant, reliable angle measurements in multiple formats. Simply place your device against any surface, and watch as Protractor Measuring Angle delivers real-time readings with remarkable precision—making every project perfectly aligned and professionally executed.

Key Features

Versatile Measurement Capabilities
Measure angles in both vertical and horizontal orientations with exceptional accuracy. Perfect for roof pitch calculations, furniture assembly, construction alignment, and countless other applications where precision matters.
(Only basic radians measurement is available in free version. Premium subscription required for all features.)

Multiple Measurement Units
Switch seamlessly between degrees, radians, and gradians to suit your specific project requirements. Our conversion system ensures you always have the right measurement format at your fingertips.
(Only radians available in free version. Premium subscription required for degrees and gradians.)

Target Angle Alerts
Set your desired angle and receive instant notifications when you reach it. Our customizable audio and vibration alerts allow you to focus on positioning rather than watching the screen.
(Premium subscription required.)

Real-Time Precision Readings
Our dynamic display provides instant feedback as you adjust your device, ensuring you capture the exact angle you need with professional-grade accuracy.
(Premium subscription required for advanced readings.)

Apple Watch Support
Measure angles from your wrist with haptic feedback—ideal for hands-free work.
(Premium subscription required.)

Why Choose Protractor Measuring Angle?

Unmatched Accuracy
Our advanced calibration system and sensitive accelerometer deliver measurements you can trust. Stop guessing and start working with confidence on any angled surface.

Intuitive User Experience
Designed for professionals and beginners alike, our clean interface and visual indicators make angle measurement straightforward and effortless. Clear, real-time feedback guides you through every measurement.

Enhanced Project Efficiency
Save time and avoid costly mistakes with instant, accurate angle readings. Whether you're installing crown molding, checking roof pitch, or aligning furniture, our app helps you get it right the first time.

Premium Subscription Benefits
To access the full power of Protractor Measuring Angle—including degree and gradian measurements, target angle alerts, and vertical/horizontal measurements—a premium subscription is required. Choose a subscription plan that fits your needs, whether you're an occasional user or a daily professional.

Start Measuring with Precision Today!
Don't let inaccurate angles compromise your projects. With Protractor Measuring Angle, you have the power to measure and align with confidence. Transform your iOS device into an essential measurement tool for perfectly executed projects and professional results.

Download Protractor Measuring Angle now and experience the future of digital angle measurement—backed by premium features that elevate your work from amateur to expert.

Privacy Policy: https://protractor.appcellent.co/privacy
Terms of Use: https://protractor.appcellent.co/terms
Contact Support: support@appcellent.co

Take the guesswork out of angle measurement—get Protractor Measuring Angle today and achieve perfect alignment every time!

## Key features

- Precise angle measurement
- Vertical and horizontal orientations
- Multiple measurement units (degrees, radians, gradians)
- Target angle alerts with audio/vibration
- Real-time precision readings
- Apple Watch support with haptic feedback

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Protractor Annual | $39.99 | per year |
| Protractor Weekly with Trial | $6.99 | per 7 days |
| Protractor Weekly | $4.99 | per 7 days |


## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087/reviews.md

### 1/5 — Angle finder

*2026-08-11*

The level isn’t true 
Depends how you hold phone you get a different reading out by double

**Developer response:** Thank you for the feedback. The app reads angles from your device's built-in sensors, so the phone should be held flat and steady against the surface you're measuring. Recalibrating on a known level surface before measuring usually resolves inconsistent readings. If the issue continues, we'd be glad to look into it further.

### 1/5 — £5.99 a week!!!!!!!

*2026-07-26*

What a joke!

**Developer response:** Thanks for the honest feedback. We know weekly pricing isn't for everyone — there's also a much cheaper annual plan and a free trial, and your feedback on pricing has been passed on to the team. We appreciate you giving the app a look.

### 1/5 — Very dumb

*2026-06-18*

In what world is the expectation to subscribe for a protractor app. This is greed.

**Developer response:** Fair point, and thanks for saying it directly. The weekly plan is meant for short one-off projects — if you measure regularly, the annual plan works out to a small fraction of the weekly price and comes with a free trial. Your feedback on pricing has been passed on to the team.

### 1/5 — Paywall

*2026-05-22*

Pay to use app

**Developer response:** Thanks for the feedback. There's a free trial before any charge, and if you plan to keep using the app, the annual plan is far better value than the weekly one. Sorry the first impression felt like a hard paywall — we've passed this on to the team.

### 5/5 — Steve.

*2026-04-22*

Great app for roof angles

**Developer response:** Hi! Thank you so much for the 5-star review! We're thrilled to hear that Protractor Angle Measure Tool is working great for your roof angle measurements. That's exactly the kind of professional work we designed it for. Happy building! 🏗️

### 1/5 — Expensive Much

*2026-03-29*

If this was 4.99 a year it would make sense. 4.99 a week! I’ll use a protractor thanks.

**Developer response:** Thank you for your feedback! We totally understand — you might want to check out our annual plan at $24.99/year, which comes to less than $0.50/week. Much better value! You can find all plans in the app.

### 1/5 — 7.99 a week

*2026-03-28*

You are not worth 7.99 a week.

**Developer response:** Thank you for your feedback! We totally understand — you might want to check out our annual plan at $24.99/year, which comes to less than $0.50/week. Much better value! You can find all plans in the app.

### 1/5 — The pricing is insane.

*2026-03-18*

If you take the 3 Day free trial it’s £7.99/ week there after. £415/ year!!!

If you don’t take the free trial it’s £5.99/Week. £311/ year!

**Developer response:** Thank you for your feedback! We totally understand — you might want to check out our annual plan at $24.99/year, which comes to less than $0.50/week. Much better value! You can find all plans in the app.

### 1/5 — Useless

*2026-02-27*

And expensive

**Developer response:** Thank you for your feedback! We totally understand — you might want to check out our annual plan at $24.99/year, which comes to less than $0.50/week. Much better value! You can find all plans in the app.

### 1/5 — Need to pay to find degree

*2026-02-24*

Load of shiet.

**Developer response:** We're sorry to hear that! We'd love to know what we can improve. Feel free to share your feedback through the app — we're always working to make it better for you.

## Frequently asked questions about Protractor Angle Measure Tool

### What is the short name for Protractor Angle Measure Tool?

The short name for Protractor Angle Measure Tool is Protractor.

### What measurement units does Protractor support?

Protractor supports degrees, radians, and gradians. The free version only offers basic radians measurement, with a premium subscription required for degrees and gradians.

### Does Protractor have alerts for specific angles?

Yes, Protractor offers customizable audio and vibration alerts for target angles, allowing users to focus on positioning. This feature requires a premium subscription.

### Can I measure angles on my Apple Watch using Protractor?

Yes, Protractor offers Apple Watch support for measuring angles directly from your wrist with haptic feedback. This functionality is available with a premium subscription.

### How accurate is Protractor Angle Measure Tool?

Protractor Angle Measure Tool boasts unmatched accuracy due to its advanced calibration system and sensitive accelerometer, delivering measurements users can trust.

### What is the update frequency for Protractor?

Protractor was last updated on April 9, 2026, indicating a recent update. The app is developed by APPCELLENT YAZILIM HIZMETLERI ANONIM SIRKETI.

### What are the subscription options for Protractor?

Protractor offers weekly and annual subscription plans. Options include 'Protractor Weekly' for $4.99/P7D, 'Protractor Weekly with Trial' for $6.99/P7D with a 3-day free trial, and 'Protractor Annual' for $24.90/P1Y.

### What age rating does Protractor have?

Protractor Angle Measure Tool has an age rating of 4+, making it suitable for a wide range of users. It is available on both iPhone and Apple Watch.

## Version history (last 5 releases)

### 4.0 — 2026-08-06

New specialized measuring modes — roof pitch, bubble level, inclinometer, body angle and more — plus full iPad support, new languages and accuracy improvements.

### 3.1 — 2026-04-09

New: Bubble Level tool! Instantly check if any surface is level—now on both iPhone & Apple Watch with haptic feedback.

### 3.0 — 2026-02-22

New: Bubble Level tool! Instantly check if any surface is level—now on both iPhone & Apple Watch with haptic feedback.

### 2.0 — 2026-01-21

Apple Watch Support is here! Now you can measure angles directly from your wrist with haptic feedback—ideal for hands-free work.

### 1.9 — 2025-11-25

This update includes stability improvements and bug fixes.

## Apps similar to Protractor Angle Measure Tool

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Angle Meter](https://appshunter.io/ios/app/angle-meter/id422843391) | 3.3 (58) | Free | Utilities |
| [Bubble Level Tool - Digital](https://appshunter.io/ios/app/bubble-level-tool-digital/id1662018802) | 4.4 (2,450) | Free | Utilities |
| [Angle Meter 360](https://appshunter.io/ios/app/angle-meter-360/id1393860479) | 4.4 (359) | Free | Utilities |
| [Bubble Level: AR, Angle Finder](https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382) | 4.5 (689) | Free | Utilities |
| [Protractor for Angle Measuring](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160) | 4.5 (1,023) | Free | Utilities |
| [Measure Angles - Bubble Level](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311) | 4.2 (1,969) | Free | Utilities |

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All apps by Appcellent: https://appshunter.io/developer/1870956141

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*