TrueLevel - Bubble Level Tool

Bubble, angle, plumb, Lock & Hold, and haptics are free. Pro adds labeled, editable measurement history that stays on your iPhone.

TrueLevel turns your iPhone into a bubble level, angle finder, protractor, and plumb tool 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. Lock & Hold keeps a reading visible while you move the phone.

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

• HAPTIC CONFIRMATION Feel a subtle tap when the readout reaches level, so you do not have to stare at the screen.

• SAVE & REVIEW READINGS (Pro) Save a reading with a job label, edit it, and revisit your organized measurement history later. Saved records stay on your phone.

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

FREE MEASUREMENT TOOLS • Bubble level with real-time dual-axis display • Angle finder with full protractor readout • Plumb mode • Lock & Hold • Haptic confirmation • Device calibration and unit controls

TRUELEVEL PRO — CHOOSE YOUR ACCESS • Weekly subscription: eligible new weekly subscribers can try Pro free for 3 days, then the subscription renews weekly at the localized App Store price until canceled • Yearly subscription: billed yearly at the localized App Store price, with no free trial • Lifetime access: a one-time purchase at the localized App Store price, with no trial or renewal

Every Pro option unlocks the same saved-work workflow: labeled measurement history, editing, organization, and later reference. Existing lifetime purchasers keep their Pro access.

BUILT FOR PROFESSIONALS & DIY TrueLevel is designed for carpenters, contractors, engineers, and anyone who wants a practical clinometer on their phone. No ads, 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://www.apple.com/legal/internet-services/itunes/dev/stdeula/