Comparison

Measure Angles vs Protractor Smart

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

Head to head
About

Measure Angles

This app transforms your device into a versatile measuring tool. It offers precise angle readings with a digital protractor and bubble level, along with AR-powered distance and volume measurements. Ideal for professionals, DIY enthusiasts, and everyday tasks requiring accuracy.

Highlights
  • Digital protractor for angle measurement
  • Bubble level for surface flatness
  • AR-powered distance and volume estimation
  • Integrated ruler and tape measure
  • Compass and altimeter
  • Timer and audio meter
Features
Read full description

Measure Angles – Bubble Level turns your device into a powerful and versatile tool for precise angle measurement. It includes both a digital protractor and a bubble level, making it perfect for professionals, makers, and everyday users who need accurate angle readings for any task. Since 2016, Measure Angles - Bubble Level has been trusted by over 1.5 Milion users worldwide, this app combines advanced AR technology with a wide range of measurement tools to ensure accurate results in any situation — all with a simple tap on your screen. Key features: -2D Level Mode (Surface Level / Bubble Mode) – Measures the flatness or inclination of a surface, like a traditional spirit level. -Protractor Mode (Angle Finder / Protractor) – Measures angles between objects or surfaces accurately. -LED – Activates the device’s flashlight for visibility in dark environments. -Compass – Displays cardinal directions using the device’s built-in magnetic sensor. -Protractor – Another tool for measuring angles, useful for precise alignment tasks. -Ruler – Allows you to measure small distances directly on your device’s screen. -Camera Ruler – Uses the camera and AR to estimate real-world distances. -Timer – Multiple countdowns and stopwatch tool for timing tasks. -Altimeter – Displays your current altitude based on GPS or barometric pressure. -Audio Meter – Measures ambient noise levels in decibels using your microphone. Always 100% precise: Measure Angles - Bubble Level automatically adjusts to your device’s size and resolution for maximum accuracy. But that’s not just it! A Premium subscription to Measure Angles – Bubble Level will also grant you access to Tape Measure - Ruler - AR APP! Measure Angles - Bubble Level is your go-to tool for precise angle measurements, featuring an easy-to-use bubble level and digital protractor. Paired with Tape Measure – Ruler – AR App, which lets you accurately measure distances, heights, and 3D volumes like cubes and circles, this bundle gives you everything you need for full 360° measurement precision. Perfect for DIY, design, or professional use, this bundle will allow you to create and visualize with great precision the house and projects of your dreams! Privacy Policy: https://magic-cake-e95.notion.site/IOS-Measure-Angles-Bubble-Level-Privacy-Policy-23fcf6557a0880d9bb2fe9c37e0ae881 --- Terms & Conditions: https://magic-cake-e95.notion.site/IOS-Measure-Angles-Bubble-Level-Terms-Conditions-23fcf6557a0880179abdcee4e3dc715a If you have any questions or feedbacks, please contact us at ruler.measure.info@gmail.com Subscribe to access to premium app features; subscription details are the following: -Length: weekly or yearly -Free trial: only on selected subscriptions -Your payment will be charged to your iTunes Account as soon as you confirm your purchase -You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase -Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period -The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period -When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded -Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription

About

Protractor Smart

This app acts as a smart instrument for measuring angles using your device's camera. It offers two free modes for measuring angles on screen or using a plumb bob for slopes, with an additional premium mode for polygon measurements.

Highlights
  • Camera-based angle measurement
  • Touch measure mode
  • Plumb bob measure for slopes
  • Polygon measurement (premium)
  • Screenshot functionality
Features
Read full description

Protractor - smart instrument to measure angles. Turn on the camera mode and measure the angle of buildings, mountains, or any other object around you. This app includes two free measuring modes: - Touch measure - touch the screen to set the angle (use camera view!). - Plumb bob measure - pendulum - use to determine the slope (remember to calibrate the plumb). In each mode, you can switch to camera view and take measurements of all objects around you. Additional Premium mode: Polygon measurement lets you draw any shape on your screen to check all its angles. Turn on the camera to see the real object through your phone and copy its shape. You can also pick a photo from your gallery or take a new picture to draw a shape on the image. In Premium mode, you can change colors, add helper lines, and switch between different angle units. All modes allows you to make a screenshot of anything on the screen. Enjoy !!!

Screenshots

Measure Angles4 screens
Protractor Smart4 screens

Verdict

The call

The clearest difference is ads: Protractor Smart at none against Measure Angles's shown. Protractor Smart also leads on rating (4.6 vs 4.2) and iOS requirement (14.0 vs 16.6). Measure Angles's advantage is update cadence (fortnightly vs every 21 months) and ratings volume (2K vs 242). On price, review sentiment, in-app purchases and monetization model 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. Measure Angles sells 8 in-app purchases, starting at $4.99 per 7 days and Protractor Smart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Protractor Smart holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Measure Angles has 2K ratings behind it against 242, so its average is the more settled of the two. Written reviews complicate that: 47% of Measure Angles's written reviews are positive against 40% of Protractor Smart's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Measure Angles ships an update fortnightly, Protractor Smart every 21 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
Measure Angles versus Protractor Smart: the parameters behind the verdict, then further details
ParameterMeasure AnglesProtractor Smart
PriceFreeFree
Rating4.2 (2K ratings)4.6 (242 ratings) — better
Positive reviews47.0% of reviews — better40.4% of reviews
Number of ratings2K — better242
Update frequencyFortnightly — betterEvery 21 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.614.0 — better
Further details — not scored
Size46 MB11 MB
Age rating4+4+
DeveloperWHATSTICKER APPS SRLExaMobile S.A.

Customer experience

Measure Angles

All ratings1,969 ratings
Positive79.2%
Neutral5.2%
Negative15.6%
Written reviews151 reviews
Positive47.0%
Neutral6.6%
Negative46.4%

Protractor Smart

All ratings242 ratings
Positive91.3%
Neutral1.7%
Negative7.0%
Written reviews52 reviews
Positive40.4%
Neutral5.8%
Negative53.8%

Bugs and requests

Measure Angles

Reported bugs

4 issues
  • Angle appears reversed or flipped
  • Angle locks too quickly
  • App crashes on launch
  • Measurements are inaccurate

Requested features

6 requests
  • Panoramic measurement tool
  • Surround audio setup feature
  • Ability to reset protractor to 0 degrees
  • Black/white display for better readability
  • Support for iPad split-screen
Show 1 more
  • Instructions/tutorial for using the app

Protractor Smart

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Measure Angles

Subscriptions4
  • Weekly premium$4.997 Days
  • Weekly premium trial7 Days trial$4.997 Days
  • Yearly premium trial7 Days trial$29.991 Year
Show 1 more
  • Yearly premium$29.991 Year
One-time4
  • Unlock all tools$1.99
  • No ads$2.99
  • Premium Discount$2.99
Show 1 more
  • Premium Edition$3.99
1 purchases

Protractor Smart

One-time1
  • AdBlock - Remove ads$1.99

Questions

Is Measure Angles free?
Measure Angles is free to download, with in-app purchases available.
Is Protractor Smart free?
Protractor Smart is free to download, with in-app purchases available.
Which has better reviews, Measure Angles or Protractor Smart?
Protractor Smart is rated higher. Measure Angles averages 4.2 out of 5 from 2K ratings, while Protractor Smart averages 4.6 from 242 ratings.
Do Measure Angles or Protractor Smart have ads?
Measure Angles shows ads; Protractor Smart does not.
Which is updated more often, Measure Angles or Protractor Smart?
Measure Angles ships an update fortnightly, and Protractor Smart every 21 months. Most recently, Measure Angles was updated on September 23, 2026 and Protractor Smart on September 22, 2026.

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