SlopeReader vs Pace Putt Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SlopeReader
This tool helps golfers measure green slopes with precision using their iPhone. It provides real-time visual feedback on pitch and roll, aiding in green reading and building Aimpoint Express techniques. The app works offline and offers smart calibration for accurate readings.
- Real-time bubble level for slope visualization
- Multiple units: Percent, Degrees, Radians
- Smart calibration for phone cases
- Directional indicators for slope direction
- Completely offline functionality
- Always-on display for continuous measurement
- Instant 60Hz sensor updates
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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.
Pace Putt Pro
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Every golfer knows the feeling. You stand over a putt and wonder which way it breaks and by how much. Pace Putt Pro gives you a real answer. Lay your phone along the ball-to-hole line. The gyroscope reads the slope to 0.1 degree precision. The app tells you exactly where to aim using the same finger method Tour professionals use. Features: • Orientation-gated slope reading that only activates when your phone is flat on the green • Visual Finger Chart mapping slope degrees to physical knuckle positions • NEAR, MID, FAR multi-point averaging for complex breaking putts • Color-gradient Stimp selector from slow to fast greens • Round and hole history with Export CSV • Light and dark mode for any lighting condition • Training drills to build green reading instinct Learn more at: PacePuttPro.com Core slope reading is free forever. Terms of Use (EULA) is linked in the App Description and inside the app at the paywall (tap gold PRO button on home screen). Terms: https://paceputtpro.com/terms · Privacy: https://paceputtpro.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: SlopeReader at none against Pace Putt Pro's 2. SlopeReader also leads on device support. On price and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Pace Putt Pro sells 2 in-app purchases, starting at $6.99 per month. SlopeReader asks for nothing beyond the download.
| Parameter | SlopeReader | Pace Putt Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Daily | — |
| Ads | No | — |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | — |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephen Lee | James Fomby |
In-app purchases
SlopeReader
No in-app purchases
Pace Putt Pro
- Pace Putt Pro Monthly$6.991 Month
- Pace Putt Pro Annual14 Days trial$49.991 Year
Questions
Is SlopeReader free?
Is Pace Putt Pro free?
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