Comparison

AR Ruler vs Bubble Level®

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

Head to head
About

AR Ruler

This app uses your phone's camera and AR technology to measure distances, lengths, angles, areas, and volumes of real-world objects. It offers a variety of tools for quick and precise measurements, suitable for both home and professional use.

Highlights
  • AR technology for precise measurements
  • Measure length, height, distance, and angles
  • Calculate area, volume, and perimeters
  • Tools for various shapes (rectangles, circles, cubes)
  • Room measurement and wall adjustments
  • Home screen widgets for faster access
Features
Read full description

AR Ruler: Measuring tape with AR Technology The AR Ruler measurement app with measurement calculator uses advanced AR technology and your phone’s camera measuring tape system to deliver precise measurements of real-world objects. With this digital ruler, you can quickly perform a room measure, check height measure of walls, calculate length measure, and estimate distance, angles, area, volume, and more. Simply point your digital tape measure at any object using your smartphone and begin measuring instantly. The built-in 3D scanner detects surfaces and allows you to activate the AR tape measure tool with ease — making it a complete measurement calculator for both home and professional use. Key Tools Available in the AR Ruler App: Line & Height – Measure the length and height of objects quickly. Distance Meter – Measure distance from the device camera to a point on a 3D surface. Angle Tool – Measure angles directly on real surfaces. Polyline & Polyline Smooth – Calculate the total length of a drawn path. Rectangle Tool – Get length, perimeter, and area of rectangles. Circle Tool – Measure the radius, perimeter, and area of circular objects. Poly & Poly Smooth – Useful for measuring irregular shapes’ area and volume. Volume & Volume Smooth – Determine the volume of 3D structures or piles. Cube & Cylinder Tools – Fast measurement of these shapes’ dimensions. Walls & Curved Wall – Ideal for quick room measure and wall adjustments. Heap & Pit – Tools to measure the volume of material stacks or excavations. Access tools even faster via home screen widgets. Whether you're a DIY user, contractor, or interior designer, the AR Ruler app transforms your smartphone into a powerful camera measuring tape and measurement calculator. Try AR Ruler app now – we’d love to hear your feedback! Customer Support: Should you have any questions about AR Ruler app or need help, please do not hesitate to contact us via developer email: support@grymalaltd.com. Follow us: Twitter: https://twitter.com/grymalaofficial Instagram: https://www.instagram.com/grymala_official/ Pinterest: https://www.pinterest.com/grymalaapps/ LinkedIn: https://www.linkedin.com/company/grymala/ Subscription: --------------- Premium - 3 days free trial • No ads; • Unlimited number of projects; • Unlimited Access to Premium Tools. Price may vary by country. You won’t be charged if you cancel at least 24 hours before the end of trial period. Active subscription will automatically renew unless canceled at least 24 hours before the end of the current active period (year). You can manage subscriptions in your iTunes Account Settings. Subscription is charged to your credit card through your iTunes account. --- Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy:https://www.grymalaltd.com/policy-new.html

About

Bubble Level®

This app provides a digital bubble level with multiple viewing options for precise measurements. It can be used for surface leveling, angle measurement, and checking flatness, offering versatile utility for various tasks.

Highlights
  • Surface level viewing
  • Portrait and landscape orientation
  • Angle and slope measurement in percentage
  • Carpenter's level functionality
  • Surface flatness check
  • Line level
  • Compass
Features
Read full description

Check Bubble Level in the palm of your hand!!! We have 3 different viewing options: Surface level, Portrait Level and Landscape Level. Bubble calibrates smoothly with all 4 sides as well as show the angle and slope in percentage. There are different types of Bubble Level Tools: ◆ Carpenter's level ◆ Angle measurement ◆ Surface flatness ◆ Line Level ◆ Compass

Screenshots

AR Ruler4 screens
Bubble Level®3 screens

Verdict

The call

The clearest difference is update cadence: AR Ruler at every 3 weeks against Bubble Level®'s every 11 months. AR Ruler also leads on rating (4.6 vs 4.4) and ratings volume (977 vs 84). Bubble Level®'s advantage is iOS requirement (11.0 vs 16.0). On price, review sentiment, ads 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. AR Ruler sells 9 in-app purchases, starting at $4.99 per 7 days and Bubble Level® 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

AR Ruler holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: AR Ruler has 977 ratings behind it against 84, so its average is the more settled of the two. Written reviews point the same way: 36% of AR Ruler's written reviews are positive against 33% of Bubble Level®'s.

UpkeepUpdate frequency

AR Ruler ships an update every 3 weeks, Bubble Level® every 11 months. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
AR Ruler versus Bubble Level®: the parameters behind the verdict, then further details
ParameterAR RulerBubble Level®
PriceFreeFree
Rating4.6 (977 ratings) — better4.4 (84 ratings)
Positive reviews35.7% of reviews — better33.3% of reviews
Number of ratings977 — better84
Update frequencyEvery 3 weeks — betterEvery 11 months
AdsYesYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.011.0 — better
Further details — not scored
Size397 MB48 MB
Age rating4+4+
DeveloperGrymala sp. z o.o.Tripti Kumari

Customer experience

AR Ruler

All ratings975 ratings
Positive91.2%
Neutral3.1%
Negative5.7%
Written reviews84 reviews
Positive35.7%
Neutral4.8%
Negative59.5%

Bubble Level®

All ratings84 ratings
Positive85.7%
Neutral6.0%
Negative8.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Bugs and requests

AR Ruler

Reported bugs

3 issues
  • Freezes on launch
  • Measurement errors
  • Incompatibility with newer devices

Requested features

3 requests
  • Free trial version
  • One-time purchase option
  • Improved accuracy for larger areas

Bubble Level®

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

AR Ruler

Subscriptions9
  • AR Ruler Weekly$4.997 Days
  • AR Ruler Weekly3 Days trial$12.997 Days
  • Premium3 Days trial$19.997 Days
Show 6 more
  • AR Ruler Monthly3 Days trial$19.991 Month
  • AR Ruler Monthly$19.991 Month
  • Special Annual Subscription3 Days trial$44.991 Year
  • Annual AR Ruler3 Days trial$69.991 Year
  • Premium3 Days trial$89.991 Year
  • Annual AR Ruler3 Days trial2 variants$89.991 Year
1 purchases

Bubble Level®

One-time1
  • Remove Ads$3.99

Questions

Is AR Ruler free?
AR Ruler is free to download, with in-app purchases available.
Is Bubble Level® free?
Bubble Level® is free to download, with in-app purchases available.
Which has better reviews, AR Ruler or Bubble Level®?
AR Ruler is rated higher. AR Ruler averages 4.6 out of 5 from 977 ratings, while Bubble Level® averages 4.4 from 84 ratings.
Do AR Ruler or Bubble Level® have ads?
Both AR Ruler and Bubble Level® show ads.
Which is updated more often, AR Ruler or Bubble Level®?
AR Ruler ships an update every 3 weeks, and Bubble Level® every 11 months. Most recently, AR Ruler was updated on November 8, 2026 and Bubble Level® on November 3, 2026.

Other comparisons