Pitchline: Roof Pitch Gauge
Slope Finder & Angle Meter
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Measure roof pitch quickly with the iPhone already in your pocket.
Pitchline is a practical roof pitch gauge for roofers, carpenters, contractors, inspectors, estimators and DIY projects. Place your iPhone against a safely reachable sloped surface, wait for a stable reading and lock the result.
TWO MEASUREMENT MODES
• Edge: place the long edge of the iPhone flush against a rafter, fascia or material sample.
• Surface: lay the back of the iPhone flat on the surface with the screen facing up.
GET THE VALUES YOU NEED
• Roof pitch as rise-over-12
• Angle in degrees
• Slope percentage
• Stable-reading indicator
• Separate Edge and Surface calibration
• Placement guidance and haptic feedback
TRY 3 COMPLETED MEASUREMENTS FREE
Opening the Measure screen, moving the phone or abandoning a reading does not use your allowance. A free measurement is counted only after you successfully lock the result. Your third result remains fully available.
UNLOCK PITCHLINE PRO ONCE
Pitchline Pro is a one-time purchase, not a subscription. It includes:
• Unlimited Edge and Surface measurements
• Unlimited projects and measurement history
• Camera alignment records and visual estimates
• Rafter length calculator
• Shareable PDF field reports
PRIVATE BY DESIGN
Pitchline does not require an account. Projects, measurements, notes and photos stay on your iPhone. The app does not use advertising identifiers or cross-app tracking.
IMPORTANT SAFETY AND ACCURACY INFORMATION
Use Pitchline only from a safe position. Never climb onto a roof solely to take a measurement. Measurements and rafter calculations are estimates; verify them with appropriate tools and local building requirements before cutting, purchasing materials or making structural decisions.
Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy:
https://pitchline-privacy-policy.164354133.workers.dev/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We’ve refined the measurement experience and updated related interface text and guidance.
The developer, Linfeng He, 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
- Linfeng He
- Size
- 1.4 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 and 7 more
- English, Dutch, French, German, Japanese, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pitchline Pro $9.99
- Copyright
- © 2026 HeLinFeng. All rights reserved.