Bubble Level - Level Tool

Contains adsIn-app purchases
4.9
25.7K reviews
10L+
Downloads
Content rating
USK: All ages
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About this app

A bubble level, a spirit level, or a plumb bob is a tool used to check whether a surface is horizontal (level) or vertical (plumb). The Bubble Level Tool, Leveler app, also serves as a goniometer or a carpenter’s level, can be applied in construction, carpentry, photography as well as daily life. It mimics and works like a real level meter. It is very handy and useful to provide you with accurate results.

Where you need Bubble Level:
🖼 At home: Use the Bubble Level to perfectly calibrate and position the object if you need to hang a picture or a photo frame onto the wall, or assemble a shelf, a refrigerator or a washing machine.
🏗️ At work: This level tool is a must have app for horizontal and vertical calibration in fields such as construction and carpentry.
📸 In photography: It is a good helper if you want to set up a tripod.
🏕️ Outdoors: Don’t you think a tilted camping car or picnic table is annoying? The Bubble Level can help you place it horizontally.
🏓 Other situations: When you are leveling a billiard table or a table tennis table, or inserting a shelf, just grab your phone and use the app!

Features
- A horizontal & vertical level tool
- A clinometer
- A screen lock to avoid changing directions
- Sound reminder
- Calibration & reset functions
- Relative calibration & absolute calibration
- Dark mode & light mode
- A bubble level & a bull’s eye level

How to use the Bubble Level:
The Bubble Level also simulates a bull’s eye level, which levels across a plane. To determine whether a surface is horizontal or vertical, or to measure its inclination angle, you can simply lay your phone flat on the surface, or lean the phone against it.

This leveler app indicates horizontal when the bubble is in the middle. It will show the actual angle in the meantime. Thanks to its sound effects, you can hear the result without looking at the screen.
Updated on
7 May 2024

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.9
25.4K reviews
June Fudger
21 August 2024
Annoying. I hadn't even had a chance to use the app. The first time that I opened it, there was a screen asking for a rating and I couldn't easily get rid of it. I was trying to hang a mailbox and didn't have a hand available. You wanted a rating. You got it. It would be zero if that was available. Next time I will go back down to the basement and get a real level. Bye!
4 people found this review helpful
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Simple Design Ltd.
23 August 2024
Hi June Fudger, sorry for the inconvenience. You can close the pop-up rating interface with the system back button. We think highly of your feedback, so we want to collect them as early as possible to improve the app. Apologize again for the bad experience. We will do our best to better your experience. Best regards.
Brian Alan
12 May 2025
I tried this app on a whim when I needed a level one day, and I liked it so much that I paid to remove the ads. Is it accurate? All my pictures and the shelves I just hung look pretty dang level and straight to me, but I imagine that if you had a goofy phone case that didn't have at least one straight edge on it would be problematic.
1 person found this review helpful
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georges geagea
7 April 2025
Supper annoying app. While you are focused and handling heavy stuffs, an add shows all over the screen and you should wait while handling heavy stuffs untill the add timer will finish. And you postpone all your work.... Alot of ads. Its ok to show adds because its a free app, but let them appear at the bottom of the screen not all over it...
2 people found this review helpful
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Simple Design Ltd.
9 April 2025
Hello! Sorry for the inconvenience. We depend on ad revenue to help maintain and improve the app. However, we also prioritize user experience. Your feedback is invaluable, and we will take it into consideration as we strive to find a balance between ad frequency and app usability. Other problems, please let us know via "Settings -> Feedback".