Ruler - Bubble Level

Contains adsIn-app purchases
4.2
2.99K reviews
10L+
Downloads
Content rating
Everyone
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About this app

The ruler tool set includes the following features:
- Ruler for measuring small items in centimeters or inches, you can measure in 2 dimensions or measure in width
- Protractor to measure component detail angles, the largest measuring angle is 180 degrees
- Bubble level to measure horizontal or vertical plane inclination, you can use table tilt alignment
- The digital compass has the ability to measure the angle of rotation and is necessary for you to determine the direction
- Flashlight illuminates when the power goes out or finds items in the dark, and built-in SOS signal
- Night color warning light flashes when needed, you can change 4 colors
Updated on
4 Jul 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
2.96K reviews
Peter
23 July 2025
A good application, but oh what intrusive adverts. Data consuming film clips. Yuk! I understand the developers need to be payed somehow, but I for one find these adverts alienate me from application. A shame.
3 people found this review helpful
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Split Donut
6 March 2024
This is absolutely perfect. Unlike the camera one which can pretty much screw up the measurements due to gyroscope/compass/or even the focus. This worked great for me. What it does do is configure the scale depending on your screen size, hence it was accurate. I tried an actual scale next to it, and yeap!! It is accurate. Thank you!
43 people found this review helpful
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Mike Munch
27 August 2024
Very weak app, it traps you on some screens not giving you a way to exit. I've used my belt as a measuring tape once when my tapes recoil spring failed and locked up. Even my belt was better than this app. It needs work like turning the sensor attenuation DOWN! For measuring, restricting you to measure objects smaller than the length of your screen is a waste of my time. It doesn't work for me so keep looking. This app could reach "OK" but it's going to take weeks of work with stringent testing.
9 people found this review helpful
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What's new

App bug fixes and app improvements