Level Tool: Clinometer & Angle
Protractor & Roof Pitch Gauge
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Eight precision tools in one app: bubble level, clinometer, protractor, roof pitch gauge, ruler, ring sizer and guided RV leveling with voice prompts. All free.
Turn your iPhone into a precise, pocket-sized toolbox. Level Tool brings together eight measuring tools, from hanging a picture frame to setting up camp, with clear readouts and a clean, modern design.
EIGHT TOOLS IN ONE APP
• Bubble Level – A two-axis surface level for shelves, tables, appliances and furniture. Lay your phone flat and watch the bubble settle at center.
• Angle Finder – Live tilt readout in degrees. Hold your phone against any edge to see its angle instantly.
• Protractor – Measure any angle quickly, for woodworking, crafts, homework or DIY layouts.
• Clinometer – Measure vertical elevation and incline. Useful for slopes, ramps, driveways, hills and sight lines.
• Roof Pitch Gauge – Read roof pitch as x/12 rise-over-run plus slope percentage, the formats roofers and contractors use. Place your phone on a rafter or roof surface and get the number.
• RV Leveling – Corner-by-corner guidance for motorhomes, travel trailers and fifth wheels. See exactly which side to raise and by how much, shown on a top-down view of your rig.
• Ruler – A true-size ruler in centimeters and inches, calibrated to your screen.
• Ring Sizer – Find your ring size in US, UK, EU and JP standards by matching an existing ring on screen.
BUILT FOR RVERS AND CAMPERS
Leveling your RV shouldn't take guesswork or trips back and forth to the door. Enter your vehicle type and dimensions, place your phone inside, and Level Tool works out how high to raise each side. Voice prompts tell you what to do next, so you can place blocks outside without watching the screen. Prompts play even when your silent switch is on.
ACCURATE AND CALIBRATED
• Calibrate against a known surface for dependable readings
• Choose degrees, percent slope, or both
• Smooth, stable readouts from your iPhone's motion sensors
• Screen calibration for a true-to-life ruler and ring sizer
PERFECT FOR
• Home improvement and DIY projects
• Hanging pictures, shelves and TVs
• Carpentry, woodworking and construction
• Roofing and contractor estimates
• RV, camper and trailer setup at the campsite
• Checking slopes, ramps and drainage
• Finding a ring size before buying online
SIMPLE BY DESIGN
Open the app, pick a tool, and measure. No setup and no clutter. Every tool is free.
Download Level Tool and keep a complete measuring kit in your pocket.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Aivana LLC, 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
- Aivana LLC
- Size
- 4 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Aivanna LLC