SlopeReader
Slope Measurement for Golf
Free · Designed for iPad
Measure golf green slopes easily and with precision. Perfect for Aimpoint Express users. Real-time bubble level with multiple units. Works completely offline.
SlopeReader transforms your iPhone into a precision slope measurement tool designed specifically for golfers who use the Aimpoint Express green reading system.
MEASURE SLOPE WITH PRECISION
Place your phone flat on the green and instantly see the slope in real-time. The intuitive bubble level interface shows both forward/backward slope (pitch) and left/right slope (roll) with directional arrows pointing downslope.
Perfect for:
• Learning what different slope percentages feel like
• Validating your green reading on practice greens
• Building muscle memory for Aimpoint Express stances
• Understanding break on challenging greens
KEY FEATURES
• Real-Time Bubble Level: Visual feedback with a moving bubble that shows slope direction and magnitude
• Multiple Units: Switch between Percent (default), Degrees, and Radians
• Smart Calibration: Account for your phone case or camera bump - calibrate once and it remembers
• Directional Indicators: Color-coded arrows show which way the green slopes
• Completely Offline: No internet required, works anywhere on the course
• Always-On Display: Screen stays active while measuring slopes
• Instant Readings: 60Hz sensor updates for smooth, responsive measurements
HOW IT WORKS
1. Place your iPhone flat on the green at your ball position
2. Wait for the bubble to stabilize
3. Read the slope percentage and direction from the display
4. Use with your Aimpoint Express technique to find your aim point
The calibration system ensures accurate readings even with a phone case. Simply calibrate on a known level surface once, and the app remembers your offset.
PERFECT FOR PRACTICE
Use SlopeReader on the practice green to:
• Feel what 1%, 2%, 3% slopes actually feel like with your feet
• Verify your slope reading accuracy
• Build confidence in your green reading before competition
• Train your perception to match reality
DESIGNED FOR GOLFERS
Built by golfers, for golfers. Simple, focused, and designed for real-world use on the course. No accounts, no subscriptions, no ads - just a tool that works.
Whether you're learning Aimpoint Express or refining your green reading skills, SlopeReader gives you the precise measurements you need to improve your putting.
Download SlopeReader and start reading greens like a pro.
Ratings & Reviews
Enhanced phone case and camera bulge calibration on ANY surface. Improved visuals and UX.
The developer, Stephen Lee, 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
- Stephen Lee
- Size
- 9.6 MB
- Category
- Sports
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Stephen Lee