Bubble Level is a tools app developed by HSCN Apps.
Download Statistics
Bubble Level has been downloaded 1.6 million times. In the last 30 days, the app was downloaded 96 thousand times.
User Ratings
Bubble Level is rated 4.75 out of 5 stars. The rating is based on 7.8 thousand ratings.
App Information
Bubble Level is FREE to download. The APK download size is 3.37 MB. The latest version available is 4.0.0. The last update was on August 24, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play July 2024.
Description
Bubble Level turns your phone into a practical spirit level for everyday checks — hanging a picture, leveling a shelf, checking a floor, or helping an appliance sit level.
MEASUREMENT MODES • Level Mode — place the edge of your phone against a surface to check horizontal alignment. • Plumb Mode — place the edge of your phone against a wall, post, or frame to check vertical alignment. • Flat Mode — place the front or back of the phone on a surface to measure tilt across two axes. • Camera Mode — view adjustable alignment guidelines over the live camera preview (Pro).
WHERE IT HELPS • Hanging pictures, mirrors, and shelves straight. • Checking whether furniture and appliances are level. • Checking walls, door frames, and posts for vertical alignment. • Getting a rough indication of floor, terrace, or walkway slope.
FREE — INCLUDED FOR EVERYONE • Level, Plumb, and Flat modes. • Angle readings in degrees. • Visual alerts with an adjustable range and color. • Optional alerts at multiples of 45°. • Selectable reference edges and automatic reference selection. • Press-and-hold lock to freeze a reading. • Guided calibration with one calibration profile. • Warnings for incomplete calibration or low sensor accuracy. • Up to 3 saved measurements, with copy and share. • Dark theme, keep-screen-on option, and decimal display settings. • Available in many languages.
PRO — ONE-TIME PAYMENT, NO SUBSCRIPTION • Camera Mode with adjustable live guidelines. • Additional units: percent, in/ft, and mm/m. • Sound and vibration alerts. • Button lock and 5-second delayed lock. • Two additional calibration profiles for different case setups. • Unlimited saved measurements. • Custom theme color.
PRIVACY • No ads, accounts, sign-up, or tracking. • Measurements are stored on your device. The app does not upload them. • Camera Mode runs entirely on your device. The app does not upload anything from the camera.
CALIBRATION The guided calibration wizard covers six orientations: back, front, bottom, top, left, and right. Calibration corrects the constant offset caused by sensor alignment and the shape of the device. You do not need a perfectly level reference surface.
ACCURACY AND LIMITS This app is a practical aid, not a certified measuring instrument. Readings depend on the device, conditions, and calibration. Calibration can correct constant offset but cannot eliminate sensor noise or scale errors that grow with angle. Camera Mode shows the tilt of your device, not the true geometry of objects in the image.
Do not rely on this app alone for professional work, structural assessments, or safety-critical decisions. Use an appropriate measuring instrument and consult a qualified professional when necessary.
Recent changes: 🧭 New: Guided calibration wizard with sound and vibration feedback 🗂️ New: Multiple calibration profiles (Pro) 📱 New: Front-surface measurements in Flat Mode ⚠️ New: Measurement accuracy warnings for missing calibration and low sensor accuracy 🎯 Improved: More consistent measurements and alert ranges across all units 🌙 New: Dark Theme is now free for everyone 🚪 New: Exit app button in Settings
Get a detailed PDF report for Bubble Level with download trends, rating history,
and key performance statistics — useful for competitive research or tracking your own app.
Learn more
Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
This is an excellent app for people with campers. Especially 5th wheels. You'll never use a level again. I put my 5th wheel up to unhitch it, then take a reading picture within the app. When I'm ready to re-hitch, I just take it to the reading in the picture and then back my truck underneath it. No getting out to see if I'm high enough or not. The app tells me exactly where I needed to lift to. I can also use it to check the level of anything that I may be building! Thanks for a great app.
★★★★★Gabriel Soos· May 29, 2026
Does exactly what it needs to, no ads, super slick UI whith good features for free and a fair premium price
★★★★★Rolger Olaffson· Jun 10, 2026
This is IMO an excellent app with terrific functionality that worked great for my needs (simulating a hydrometer to estimate tree heights). Thanks for a well-designed helpful tool.
★☆☆☆☆Conroy Fehr· Jun 9, 2026
I needed this app to check the angle down to the Horizon in camera view, and it only goes side to side not down and up, I paid for the pro version, and they don't give me a refund when I uninstalled the app, these guys are just after the money, I need a refund right away
★★☆☆☆Alexander Guskov· Jun 25, 2026
This app would be very good if it fit into screen, had an exit button and didn't remove Android navigation buttons. So it's impossible to exit this app
★☆☆☆☆Ben Carew· Aug 13, 2026
It doesn't work anymore? I've uninstalled and reinstalled but still not working. It is just stuck at 4°
Google Play Rankings for Bubble Level
This app is not ranked
Technologies used by Bubble Level
7 permissions·12 libraries
Subscribe to see full permission and library details
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
