TrueLevel Bubble Level
Pocket spirit level & angles
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Lay your iPhone on anything and read tilt as a bubble plus exact pitch and roll degrees. Zero against any plane, save angles to a labelled log. Offline, no account.
TrueLevel turns your iPhone into a precise pocket spirit level and angle logger.
Lay the phone flat on a shelf, a picture frame, a table leg, or a worktop and read how level it is two ways at once: a clear bubble that drifts toward the high side, and exact pitch and roll in degrees to one decimal place. Big monospaced readouts stay readable across the room.
It is a straightforward utility tool — for hanging pictures, setting shelves, checking a tripod head, leveling a washing machine or a 3D-printer bed, or just settling an argument about whether the floor really slopes.
WHAT YOU GET
• 2D bubble level — a bullseye vial that turns green the moment you are within tolerance.
• Pitch and roll readouts — single-axis vials and precise degree numbers for each axis.
• One-tap zeroing — calibrate against any reference plane and measure relative tilt from it.
• Angle log — capture a reading, give it a label like "Top shelf", and keep a tidy history.
• Adjustable tolerance — choose how close to flat counts as level, from 0.2° to 2.0°.
WORKS WITH WHAT YOU HAVE
• Any iPhone with the standard motion sensors.
• Apple Watch — a standalone wrist level with its own bubble and Zero button.
• Home Screen Widget showing your last captured angle and how many you have saved.
• Live Activity on the Lock Screen and Dynamic Island for a hold-to-measure session.
PRIVATE BY DESIGN
No account. No cloud. No analytics. No third-party SDKs. Every reading stays on your device using Apple's own frameworks. Motion data is read only while the app is open and in front of you, and there is no network traffic.
A precise tool that fits in your pocket.
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Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ilia Filiaev, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ilia Filiaev
- Size
- 1.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Ilia Filiaev