Bubble Level: Spirit Level

Bubble Level turns your phone into a precise, offline spirit level. Whether you are hanging a picture, mounting a shelf, checking a table, aligning appliances or leveling a camera, this leveling tool gives you a clear bubble and an exact angle in one glance.

A machined aluminium vial sits at the center of the screen. Tilt your phone and the bubble drifts just like a real spirit level. When the surface is truly flat, the bubble locks green and your phone can buzz to confirm it — no need to squint at tiny lines.

KEY FEATURES
• 2-axis bullseye bubble level for flat surfaces
• Single-axis tube levels for roll and pitch
• Live angle readout in degrees for pitch, roll and surface tilt
• Green "in-level" lock with optional haptic buzz
• Tap to freeze and hold a reading
• Switch between degrees and slope percentage
• 100% offline — no account, no tracking, no internet needed
• Distinct precision-tool design with a high-visibility bubble

PERFECT FOR
Hanging pictures and frames straight • mounting shelves and TVs • checking floors, tables and furniture • DIY, woodworking and carpentry • aligning appliances like washers and fridges • tripod and camera leveling • any quick leveling job around the home or workshop

The accelerometer does all the work, so Bubble Level needs no special permissions and works anywhere — even with no signal.

BUBBLE LEVEL PRO
Upgrade once to unlock:
• Calibrate a custom zero on any reference surface
• Freeze and hold readings hands-free
• Extra machined vial themes
• Remove all ads

Pro is a one-time purchase, yours forever. The core level works fully without it.

Note: a phone level is a handy everyday tool, but for structural or safety-critical work always use a certified physical spirit level.