# Terrain Attain: Green Reader — LiDAR Golf Putt Line & Slope > LiDAR-based terrain visualization for understanding ground shape and elevation. (iPhone/iPad app by SwiftSherpas LLC.) - Source: https://appshunter.io/ios/app/terrain-attain-green-reader/id6793380722 (this page in markdown: same URL + `.md`) - Developer: [SwiftSherpas LLC](https://appshunter.io/developer/1719155429) - Category: Sports, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 4 MB - Languages: American English - Released: 2026-07-29 - Data updated: 2026-11-13 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/terrain-attain-green-reader/id6793380722/reviews.md ## What is Terrain Attain? Read the green before you putt. TerrainAttain turns the LiDAR sensor in your iPhone Pro into a green reader: scan the putting surface in seconds, see the slope as a color map, and get a simulated putt line that shows where to aim. NEW: PUTT LINE Tap your ball and the hole on the scanned green. TerrainAttain rolls a simulated ball across the surface you just scanned and draws the line that drops, with an aim point beside the hole. • See how far left or right to aim, in inches or centimeters • Change your pace and watch the break change: firmer rolls straighter, softer breaks more • Set the green speed (Stimp) to match the course • Uphill, downhill and "plays like" distance for every putt • The cup is found automatically when it is in the scan SEE THE SLOPE • Color elevation map: blue is low, red is high • Downhill arrows sized by how hard the green breaks • Flow mode: arrows stream downhill so the fall line is obvious • Contour lines and a draped grid for a classic green-map look • Smooth surface reconstruction takes out sensor speckle so the real shape shows SCAN IN SECONDS 1. Point your iPhone at the green. 2. Press and hold the scan button and pan slowly. 3. Release to read it. No account, no setup, no extra hardware. The map appears in augmented reality, locked to the real ground, so you can walk around your putt and study it from any side. Scans are processed on your iPhone. MADE FOR PRACTICE Use it on the practice green to train your eye, check your read, and learn how speed changes the line. It also works on any surface you want to understand: a backyard, a patio, a floor, a putting mat. MAKE IT YOURS • Color by bumps or by overall tilt, with three palettes including your own colors • See-through map so the real ground and the cup show underneath • Adjustable scan width, reach and resolution FREE FOR 30 DAYS Every feature is free for your first 30 days. After that, TerrainAttain Pro keeps scanning unlocked with a monthly or annual subscription. REQUIREMENTS An iPhone with a LiDAR sensor: iPhone 12 Pro or later Pro and Pro Max models. Scanning is not available on iPhones without LiDAR. GOOD TO KNOW • TerrainAttain is a visualization and practice tool. Results depend on scan quality, lighting and how steadily you move, so treat the line as a guide, not a guarantee. • Green-reading devices are restricted in many competitions. Check the Rules of Golf and your local rules before using it during a round. • It is not a replacement for professional surveying, engineering, construction or safety-certified measurement equipment. SUBSCRIPTION TerrainAttain Pro is an auto-renewing subscription, available monthly or annually. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel it at any time in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://swiftsherpas.com/privacy-policy ## Key features - LiDAR-powered surface scanning - Visual contour and elevation mapping - Slope and ground-shape visualization - Top-down interpretation views - Putting green and terrain inspection - Focused on-location interface ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly Pro | $1.99 | per month | | Annual Pro | $14.99 | per year | ## Is Terrain Attain safe? Not enough ratings yet to assess Terrain Attain. ## Is Terrain Attain legit? Terrain Attain: Green Reader appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Terrain Attain is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/terrain-attain-green-reader/id6793380722/reviews.md ### 5/5 — Read Greens Like a Pro *2026-08-05* Look no further than this app if you want to start making more putts! This is the real deal ### 5/5 — Amazing! *2026-07-30* Made green reading so much easier. Literally was like putting in the old tiger woods video games. So cool ## Frequently asked questions about Terrain Attain ### What devices are compatible with Terrain Attain? Terrain Attain requires a compatible iPhone equipped with a LiDAR sensor. It is designed for use on iPhones that support this technology. ### Does Terrain Attain have ads? No, Terrain Attain does not contain advertisements. It offers an uninterrupted user experience focused on terrain analysis. ### What are the subscription options for Terrain Attain? Terrain Attain offers a Monthly Pro subscription for $9.99 and an Annual Pro subscription for $79.99, providing access to advanced features. ### How does Terrain Attain work? You point your iPhone at a surface, move steadily to capture the area, and then review the generated terrain visualization, which includes contour and elevation displays. ### Is Terrain Attain suitable for professional surveying? Terrain Attain is intended as a visualization and general informational tool. It is not a replacement for professional surveying, engineering, construction, or safety-certified measurement equipment. ### What kind of elevation changes can Terrain Attain detect? Terrain Attain reveals contours, slope direction, high and low areas, and subtle elevation changes that can be difficult to judge by eye, offering a new perspective on ground beneath you. ### How often is Terrain Attain updated? Terrain Attain was last updated on July 29, 2026, with version 1.0. Future updates will likely focus on improving features and compatibility. ### What is the age rating for Terrain Attain? Terrain Attain has an age rating of 4+, making it suitable for a wide range of users interested in understanding terrain. ## Version history (last 5 releases) ### 1.6 — 2026-11-11 NEW: PUTT LINE After a scan, tap Putt line, then tap your ball and the hole. TerrainAttain rolls a simulated ball over your scanned green and shows the line that drops and where to aim. • Change pace and green speed (Stimp) and watch the break change • See how far left or right to aim, uphill or downhill, and the "plays like" distance • The cup is found automatically when it is in the scan A CLEARER, MORE ACCURATE MAP • New Smooth surface: the map is now one continuous surface, without speckle or gaps. Raw is still available in Settings. • Arrows, contours and grid now line up exactly with the map • Feet and the cup no longer distort the slope arrows • Very short scans now show their map ### 1.5 — 2026-09-16 Extended the free trial to a month instead of a week. ### 1.4 — 2026-08-18 Improved arrow mode ### 1.3 — 2026-08-14 Improved the arrow/flow mode to be more accurate ### 1.2 — 2026-08-08 Extended the free trial to 7 days instead of 24 hours ## More apps by SwiftSherpas LLC - [MCTap](https://appshunter.io/ios/app/mctap/id6768855361) - [Dooggies](https://appshunter.io/ios/app/dooggies/id6796590678) - [VToss](https://appshunter.io/ios/app/vtoss/id6833463408) All apps by SwiftSherpas LLC: https://appshunter.io/developer/1719155429 ## Related topics [terrain](https://appshunter.io/ios/topics/terrain) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-13.*