SlopeReader is made and published by Stephen Lee. AppBrain is an independent app data site and isn't affiliated with Stephen Lee. The app name, icon, screenshots and description belong to Stephen Lee and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 3 ratings
- Last updated
- April 10, 2026
It doesn't have enough ratings yet to judge what users think.
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Releases
Updates seen on the App Store- Version
- 2.1
- Launched
- November 2025
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 9.13 MB
- Content rating
- Everyone
Technologies used by SlopeReader
About the app and developer
About SlopeReader
SlopeReader is a sports app developed by Stephen Lee.
User Ratings
SlopeReader is rated 5.00 out of 5 stars. The rating is based on 3 ratings.
App Information
SlopeReader is freely available from the App Store. The app size is 9.13 MB. The latest version available is 2.1. The last update was on April 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since November 2025.
Developer information for Stephen Lee
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Store listing
By Stephen Lee, from the App Store
Description by Stephen Lee Written by the developer, not by AppBrain. Click to read.
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.