Bubble Level: Spirit Level
Tilt Meter, Angle Finder
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn your iPhone into a precision spirit level. Set it flat on any surface and the bubble tells you instantly whether that shelf, picture frame, table, or floor is truly level — no plastic tool required.
Most phone levels stop at a single bubble. BubbleLevel is built for real projects: a 2D bullseye and single-axis vial, a pass/fail surface check with an adjustable tolerance, a full angle finder that reads in degrees or percent grade, and a saved log so you can prove every reading later. Calibrate out a bent case or an uneven countertop once, and every measurement stays true.
WHAT YOU GET
- A live bubble level with a 2D bullseye and single-axis vial for shelves, frames, and floors
- Real-time pitch and roll tilt readout
- Surface check that gives a clear PASS or FAIL against a tolerance you set
- Angle finder and protractor reading degrees and percent grade, with roof pitch also shown as rise-in-12
- Slope reference for floor drainage, gutter fall, accessible ramp gradients, stair stringers, and roof pitches
- Saved readings with timestamps so you can compare before-and-after or send proof
- One-tap calibration that corrects a bent case or an uneven counter, plus reset calibration
- Lock and hold the current reading
- Learn section covering level, plumb, vial, grade and slope, and roof pitch
PERFECT FOR
- DIY homeowners hanging shelves, art, and mirrors dead straight
- Carpenters and contractors checking level, plumb, and grade on site
- Renovators levelling floors, counters, and appliances
- Anyone who wants a true reading without carrying a bulky spirit level
WHY NOT JUST USE A PLASTIC LEVEL
A hardware-store level only tells you level or not — it cannot measure the exact angle, log the result, or fit in your pocket. BubbleLevel gives you the precise degree, a pass/fail verdict, and a saved history, all on the phone you already carry.
PRIVACY
Everything runs on your device. No account, no cloud, no tracking — your measurements never leave your phone, and the app works fully offline.
FULL ACCESS
The live bubble level is free to use. BubbleLevel Premium unlocks the surface check, the angle finder, and your saved-reading history. Choose the plan that fits: Weekly, Yearly, or a one-time Lifetime purchase. Subscriptions auto-renew until cancelled; manage or cancel anytime in your App Store account settings.
Level your next project the right way — download BubbleLevel and get a straight, true reading in seconds.
Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? tphuc.work@gmail.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and performance improvements.
Subscriptions
In-App Purchases
The developer, Phuc Pham, 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
- Phuc Pham
- Size
- 5.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Grade Gauge — One-Time Buy $49.99
- Shelf Alignment — Yearly $24.99
- Surface Check — Weekly $4.99
- Copyright
- © 2026 Phuc Pham