Comparison

Bubble Level Tool 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 Tool

Measure precise angles and levels with your device. Easily switch between portrait, landscape, and surface level modes. Lock and reset angles for accurate measurements.

Highlights
  • Measure current device angle
  • Reset angle
  • Lock angle
  • Portrait mode
  • Landscape mode
  • Surface level
Read full description

Bubble Level Tool - Digital lets you see the current angle of your device, along with reseting and locking the angle too. Tilt the device to measure the precise angle and easily switch between portrait, landscape & surface level. If you have any questions or feedback, I'm all ears. Bubble Level Tool - Digital was created by an individual in his free time, and I’d love to know what you think. I’m available through Twitter @elohohel & Mastodon @elohohel@mastodon.social. Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ A subscription / purchase is required to continue using the app.

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 Level Tool4 screens
Protractor for Angle Measuring4 screens

Verdict

The call

Bubble Level Tool and Protractor for Angle Measuring both sit at 4.4 stars, but that hides the real split: 50% of Protractor for Angle Measuring's written reviews are positive against 6% of Bubble Level Tool's. Protractor for Angle Measuring also leads on monetization model (free with in-app purchases vs subscription). Bubble Level Tool's advantage is ads (none vs shown) and update cadence (weekly vs every 2 weeks). On price, rating, ratings volume and in-app purchases 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 Tool sells 9 in-app purchases, starting at $3.99 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 — 4.4 for Bubble Level Tool against 4.5 for Protractor for Angle Measuring. Both are backed by a comparable volume of ratings — 2.5K and 1K respectively. Written reviews are what separate them: 6% of Bubble Level Tool's written reviews are positive against 50% of Protractor for Angle Measuring's.

UpkeepUpdate frequency

Bubble Level Tool ships an update weekly, Protractor for Angle Measuring every 2 weeks. Both last shipped on September 22, 2026.

Scorecard4 real differences · 6 level
Bubble Level Tool versus Protractor for Angle Measuring: the parameters behind the verdict, then further details
ParameterBubble Level ToolProtractor for Angle Measuring
PriceFreeFree
Rating4.4 (2.5K ratings)4.5 (1K ratings) — better
Positive reviews6.0% of reviews50.0% of reviews — better
Number of ratings2.5K — better1K
Update frequencyWeekly — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size5 MB112 MB
Age rating4+4+
DeveloperRihab MehboobAppLiks Sp. z O.O.

Customer experience

Bubble Level Tool

All ratings2,466 ratings
Positive84.6%
Neutral2.4%
Negative13.0%
Written reviews134 reviews
Positive6.0%
Neutral0.0%
Negative94.0%

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 Tool

From 2.5K App Store ratings

What we love

  • ⭐️ Useful app
  • 🤠 Handy when needed
  • 👍 It simply works

Room to improve

  • 💰 Expensive subscription
  • 🚫 Unusable without paying
  • 📢 Constant upsell pop-ups
  • 🕰️ Limited free trial
  • 🤯 Frustrating experience

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 Tool

Reported bugs

2 issues
  • Inaccurate level readings
  • Compatibility issues with older devices

Requested features

3 requests
  • Percentage slope display option
  • Ability to switch between degree and percent
  • Refund/cancellation options

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

9 purchases

Bubble Level Tool

Subscriptions7
  • Bubble 1 Week$3.997 Days
  • Bubble 1 Week$4.997 Days
  • Bubble 1 Month3 Days trial$5.991 Month
Show 4 more
  • Bubble 1 Month$9.991 Month
  • Bubble 1 Year3 Days trial$24.991 Year
  • Bubble 6 Months$29.996 Months
  • Bubble 1 Year3 Days trial$39.991 Year
One-time2
  • Bubble Lifetime$17.99
  • Bubble Lifetime$69.99
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 Tool free?
Bubble Level Tool 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 Tool or Protractor for Angle Measuring?
Protractor for Angle Measuring is rated higher. Bubble Level Tool averages 4.4 out of 5 from 2.5K ratings, while Protractor for Angle Measuring averages 4.5 from 1K ratings.
Do Bubble Level Tool or Protractor for Angle Measuring have ads?
Protractor for Angle Measuring shows ads; Bubble Level Tool does not.
Which is updated more often, Bubble Level Tool or Protractor for Angle Measuring?
Bubble Level Tool ships an update weekly, and Protractor for Angle Measuring every 2 weeks. Most recently, Bubble Level Tool was updated on September 22, 2026 and Protractor for Angle Measuring on September 22, 2026.

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