Comparison

Bubble Level vs Protractor for Angle Measuring

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

Head to head
About

Bubble Level

This app transforms your phone into a precise leveling tool. It offers accurate angle measurement, inclination detection, and augmented reality features for DIY and professional use. Calibration is simple and quick.

Highlights
  • Ultra-precise angle measurement
  • Inclination and slope meter
  • Augmented reality ruler and protractor
  • Effortless one-touch calibration
  • Clear and easy-to-read display
  • User-friendly interface
Features
Read full description

Transform Your Phone into a Precision Leveling Tool! Over 450K users - 4.5 Star Average Rating Introducing the Super-Easy Level: Turn your device into a highly accurate bubble level (spirit level) with ease. Ideal for both DIY aficionados and professional builders, our app delivers unparalleled precision for any leveling task. Why Choose Super-Easy Level? Versatile Measurement Tools: Not only can you check the level and inclination of surfaces, but with our camera integration, measuring lengths becomes a breeze. Augmented Reality Features: Equipped with an augmented reality ruler and protractor for cutting-edge measurement accuracy. Simplicity at Its Best: Enjoy a user-friendly interface that makes navigation a piece of cake on any smartphone or tablet. Now on Apple Watch: Angle measurements appear live on your wrist. The Watch app mirrors your iPhone's mode and accent color in real time. In 1D mode, a full-screen artificial horizon tilts with your measured angle — choose degrees, slope %, or near-delta. In 2D mode, a dual-axis crosshair with a yaw compass ring tracks tilt on both axes simultaneously. Lock readings or save angles directly from your Watch; the last reading stays on screen even if the iPhone connection drops. Key Features: Ultra-Precise: Measures angles to the nearest tenth of a degree. Effortless Calibration: Simple one-touch calibration keeps accuracy at your fingertips. Clear Visual Display: Our interface is designed for clarity, ensuring your measurements are easy to read at a glance. Robust Toolset: Whether it's a quick DIY project or a professional job, our app is up to the task. Get Started in Seconds: Align your phone with a known level or vertical edge. Press the calibration button. Done! Elevate your DIY and professional projects with Super-Easy Level — download now and level up your precision game! Features: ◉ Accurate measuring to one tenth of a degree. ◉ Super easy angle calibration and handling. ◉ Precise and reliable measurements ◉ Ability to measure inclination/slope ◉ Easy to read display ◉ Calibration function for even more accurate results ◉ User-friendly interface and can be used on any smartphone or tablet. ◉ Apple Watch support — live angle readings, lock & save from your wrist. How to calibrate: ◉ Align the phone with a level or vertical edge and hit the calibration button. ◉ That's it. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Protractor for Angle Measuring

Transform your iPhone into a precision angle measuring tool. Easily measure angles in real-time using touch or camera modes, and even analyze angles in existing photos. Customize your tools for a seamless experience.

Highlights
  • Real-time angle measurement
  • Touch and camera modes
  • Measure angles in photos
  • Simultaneous unlimited angle measurement
  • Tool color customization
  • Plumb bob pendulum for tilt
Features
Read full description

Your pocket angle expert! Transform your iPhone into a precision tool for real-time angle measurement. Simply tap, snap, and assess angles effortlessly with our intuitive touch and camera modes. Measure unlimited angles simultaneously, customize tools, and enjoy the perfect blend of accuracy and simplicity. Ideal for architects or anyone seeking quick, reliable measurements. Embrace the power of Protractor for fast, on-the-go angle assessments! Key Features: • Touch Measure: Tap the screen to set angles (use the camera view). • Plumb Bob Pendulum: Perfect for determining tilt (calibrate for accuracy). • Angle Measurement in Photos and from Camera. • Simultaneous Measurement of Unlimited Angles. • Tool Color Customization for Visual Convenience. Privacy Policy: https://appliks.com/privacy-policy ​​Terms of Use: https://appliks.com/terms-of-use

Screenshots

Bubble Level4 screens
Protractor for Angle Measuring4 screens

Verdict

The call

The clearest difference is update cadence: Bubble Level at weekly against Protractor for Angle Measuring's every 2 weeks. Protractor for Angle Measuring's advantage is review sentiment (50% vs 41%). On price, rating, ratings volume and ads 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. Bubble Level sells 11 in-app purchases, starting at $1.99 per 7 days and Protractor for Angle Measuring sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Bubble Level against 4.5 for Protractor for Angle Measuring. Both are backed by a comparable volume of ratings — 702 and 1K respectively. Written reviews are what separate them: 41% of Bubble Level's written reviews are positive against 50% of Protractor for Angle Measuring's.

UpkeepUpdate frequency

Bubble Level ships an update weekly, Protractor for Angle Measuring every 2 weeks. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 8 level
Bubble Level versus Protractor for Angle Measuring: the parameters behind the verdict, then further details
ParameterBubble LevelProtractor for Angle Measuring
PriceFreeFree
Rating4.5 (702 ratings)4.5 (1K ratings)
Positive reviews41.4% of reviews50.0% of reviews — better
Number of ratings7021K — better
Update frequencyWeekly — betterEvery 2 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.616.6
Further details — not scored
Size43 MB112 MB
Age rating4+4+
DeveloperJens RieckhofAppLiks Sp. z O.O.

Customer experience

Bubble Level

All ratings702 ratings
Positive87.6%
Neutral3.4%
Negative9.0%
Written reviews29 reviews
Positive41.4%
Neutral3.4%
Negative55.2%

Protractor for Angle Measuring

All ratings1,023 ratings
Positive88.5%
Neutral4.6%
Negative6.9%
Written reviews76 reviews
Positive50.0%
Neutral5.3%
Negative44.7%

User reviews

Bubble Level

From 702 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🔍 Accurate angle measurements
  • 🛠️ Helpful for various tasks (telescopes, leveling, etc.)

Room to improve

  • 🤑 Expensive ad removal
  • 🤖 Unreliable calibration
  • 💤 Constant interruptions and ads
  • 🚫 Unusable due to ads

Protractor for Angle Measuring

From 1K App Store ratings

What we love

  • 👍 Useful for surveying and measuring angles
  • 💡 Interesting use of camera to overlay protractor
  • 👍 Helps with specific use cases like golf setup
  • 👍 Provides a clutter-free protractor experience

Room to improve

  • 🐛 Difficulty using the protractor tool and angle measurement
  • 🐛 Inability to zoom in/out when measuring angles in photos
  • 🐛 Inaccurate angle measurements in some cases

Bugs and requests

Bubble Level

Reported bugs

2 issues
  • App crashes on launch
  • Measurement point behaves erratically

Requested features

2 requests
  • Ability to calibrate the app
  • Option to change the display color

Protractor for Angle Measuring

Reported bugs

2 issues
  • Protractor tool is hard to use and requires multiple tries
  • Angle measurements do not match real-world angles

Requested features

3 requests
  • Add more instructions and guidance for using the protractor tool
  • Improve the zoom functionality when measuring angles in photos
  • Enhance the accuracy of angle measurements

In-app purchases

11 purchases

Bubble Level

Subscriptions6
  • Premium - Weekly Plan$1.997 Days
  • Spirit Level Premium – Monthly$2.991 Month
  • Bubble Level Premium - Weekly$2.997 Days
Show 3 more
  • Bubble Level Premium - Monthly$5.991 Month
  • Spirit Level Premium – Annual7 Days trial$14.991 Year
  • Bubble Level Premium - Annual7 Days trial$19.991 Year
One-time5
  • All features - No ads$1.99
  • Unlock all AR features$5.99
  • Discount Lifetime Premium$14.99
Show 2 more
  • Bubble Level PREMIUM Lifetime$19.99
  • Bubble Level - Lifetime Premium$29.99
5 purchases

Protractor for Angle Measuring

Subscriptions5
  • Weekly Access$0.997 Days
  • Weekly Access with Trial3 Days trial$1.997 Days
  • Weekly Access$1.997 Days
Show 2 more
  • Yearly Access$3.991 Year
  • Yearly Access$4.991 Year

Questions

Is Bubble Level free?
Bubble Level is free to download, with in-app purchases available.
Is Protractor for Angle Measuring free?
Protractor for Angle Measuring is free to download, with in-app purchases available.
Which has better reviews, Bubble Level or Protractor for Angle Measuring?
Bubble Level and Protractor for Angle Measuring are both rated 4.5 out of 5 on the App Store, from 702 and 1K ratings respectively.
Do Bubble Level or Protractor for Angle Measuring have ads?
Both Bubble Level and Protractor for Angle Measuring show ads.
Which is updated more often, Bubble Level or Protractor for Angle Measuring?
Bubble Level ships an update weekly, and Protractor for Angle Measuring every 2 weeks. Most recently, Bubble Level was updated on September 20, 2026 and Protractor for Angle Measuring on September 22, 2026.

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