Bubble Level turns your phone into an accurate spirit level and angle finder. Open it and measure: no sign-up, no clutter.
• Bar level: stand the phone on its edge to check shelves, frames and furniture
• Surface level: lay it flat to check both axes at once
• Big, easy-to-read numbers in degrees and slope %
• Haptic click at 0°, 45° and 90°
• HOLD: tap the screen to freeze the reading
• Two-side calibration: accurate even with a phone case
• Sound mode: beeps speed up as you get closer to level, so you can work without looking
• Works offline. No account needed.
PRO (one-time purchase, not a subscription)
• Camera protractor: measure roof pitch, stairs and any angle on the camera image
• Precision mode: 0.01° and mm/m
• Target angle alert: vibrates when you reach the angle you set
• No ads
Try every Pro feature free for 24 hours by watching a short ad.
Accurate spirit level & angle finder with slope %, calibration and sound mode