TrueLevel - Bubble Level Tool

Bubble level, angle finder & protractor. Free to start; Pro adds plumb checks, saved readings, Lock & Hold, and haptic level confirmation.

TrueLevel turns your iPhone into a bubble level, angle finder, and protractor for carpentry, installation, and DIY checks — all with a clean, easy-to-read interface.

• BUBBLE LEVEL Place your iPhone on a surface to check whether it is level. The dual-axis bubble responds in real time with live degree readouts.

• ANGLE FINDER & PROTRACTOR Use the full 360° protractor display to check an angle. Hold your device against a surface and read the displayed angle for cutting, framing, or slope checks.

• PLUMB MODE (Pro) Check vertical alignment with a dedicated plumb bob display. Ideal for door frames, posts, fences, and wall installations.

• SAVE & REVIEW READINGS (Pro) Lock any reading and save it with a label for repeat work. Keep job measurements on your phone instead of trying to remember them later.

• DEVICE CALIBRATION Zero TrueLevel against a reference surface with a simple two-step calibration. Results depend on device sensors, placement, case, and calibration.

• HAPTIC FEEDBACK (Pro) Feel it when the readout reaches level. Subtle haptic taps confirm 0° or 90° without requiring you to stare at the screen.

FREE FEATURES • Bubble level with real-time dual-axis display • Angle finder with full protractor readout • Clean, distraction-free interface • Device calibration

PRO UPGRADE — $3.99 ONE-TIME • Plumb mode for vertical alignment • Save readings with labels for repeat work • Lock & Hold for hard-to-read positions • Haptic confirmation when level

BUILT FOR PROFESSIONALS & DIY TrueLevel is designed for carpenters, contractors, engineers, and anyone who wants a practical clinometer on their phone. No ads, no subscriptions, no account, and no internet required for measurements.

PRIVACY FIRST TrueLevel collects zero data. No analytics, no tracking, no account required. Your measurements stay on your device.

Requires iOS 17.6 or later.

Privacy Policy: https://ai-app-generator-sigma.vercel.app/truelevel/privacy.html Terms of Use: https://ai-app-generator-sigma.vercel.app/truelevel/terms.html