# RipReader: Disc Golf Radar Gun — Measure Speed, Spin & Distance > Phone-based disc golf throw speed, spin, and distance analyzer. (iPhone/iPad app by Sarulian LLC.) - Source: https://appshunter.io/ios/app/ripreader-disc-golf-radar-gun/id6760834017 (this page in markdown: same URL + `.md`) - Developer: [Sarulian LLC](https://appshunter.io/developer/1886450819) - Category: Sports, Utilities - Price: Free with in-app purchases - Rating: 4.30/5 from 52 App Store ratings · 19 written reviews indexed - Age rating: 4+ - Requires: iOS 18.6 · 162 MB - Languages: American English - Released: 2026-05-02 - Data updated: 2026-08-25 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/ripreader-disc-golf-radar-gun/id6760834017/reviews.md ## What is RipReader? Measure your disc golf throws with your phone. RipReader turns your phone's high-speed camera into a $300 radar gun. Set your phone on the ground, throw your disc, and get instant metrics. No extra hardware required. Tap Start and place your phone on the ground or on a spare disc. Throw your disc and motion detection captures it automatically. Review slow-motion footage with your metrics overlaid. No button timing. No second person needed. Just throw. RipReader measures velocity and spin for every throw, plus GPS distance from your throw to the landing spot. Forehand and backhand are detected automatically. Every throw is saved with slow-motion playback, organized into sessions by date and location. An analytics dashboard tracks your averages, trends, and personal records over time. You can also build your disc bag, and after each session RipReader automatically matches throws to the right disc using on-device visual recognition and compares performance across different discs. Dedicated throw measurement hardware can run $300 to $400. RipReader works with every disc you own, runs on the phone already in your pocket, and costs a fraction of the price. RipReader is designed for players who practice with purpose. Auto-detection means you stay in your rhythm, no fumbling with buttons between throws. Capture an entire field session, then review everything after. Subscription details: - Unlimited Annual: $24.99/year, auto-renewing - Payment is charged to your Apple ID at purchase confirmation - Auto-renewing subscriptions renew unless turned off at least 24 hours before the end of the current period - Renewal cost is charged to your account in the 24 hours prior to the end of the current period - Manage or cancel subscriptions in your Apple ID Account Settings Privacy Policy: https://ripreaderapp.com/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Phone camera radar gun - Automatic throw detection - Velocity and spin measurement - GPS distance tracking - Slow-motion playback - Disc bag builder - Performance analytics ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | RipReader Premium Monthly | $9.99 | per month | | RipReader Premium Annual | $99.99 | per year | | RipReader Pro Annual | $24.99 | per year | ## Recent user reviews (10 of 19) All indexed reviews: https://appshunter.io/ios/app/ripreader-disc-golf-radar-gun/id6760834017/reviews.md ### 4/5 — Spin reader *2026-07-29* Needs a better spin reader. I always get the speed but spin is like 1/10 throws. Im trying to improve my spin so it hasnt been super helpful quite yet! ### 2/5 — Works not bad! *2026-06-29* I think you can use the tech disc on this app? I was getting exact numbers. Then I switched to a regular disc and it took sometime to get speeds. Update: It still took a lot of tries for me. I throw an average around 63-65 mph on the Tech Disc and this app said I threw 68 mph. That would be nice but I don’t think it’s accurate. I don’t know how it works but maybe the wide lens needs to be used. I’ll continue to update my review as this app updates and enhances. I really hope the accuracy and experience gets better! **Developer response:** Hi! I really appreciate the feedback! If you have a throw that you think was the incorrect speed, please press the "Report Issue" button on the throw details screen. That allows me to diagnose what happened and improve the app for everyone. ### 1/5 — Garbage app *2026-06-23* All this app does is say “waiting for placement” while simultaneously heating my phone to the approximate temperature of lava. Not one feature works. **Developer response:** Hi, I'm really sorry that you've had a rough experience so far. If you're willing to keep trying, I suspect the issue might be a compass permission not being granted. Please check this setting: Settings > Privacy & Security > Location Services > System Services (scroll all the way to the bottom) > Compass Calibration, check that it's set to ON. If you are still having issues feel free to email me support@sarulian.com. I respond quickly and will get you up and running. ### 3/5 — Free Trial need testing *2026-06-17* The app seems great, but there’s some finicky parts of the app that take a few throws to understand: audio prompts for throwing, data display only shows after session, heat defo bugs out the app. I tried it out in a noisy outside space and got caught in a loop. I suspect it was because I hit my 5 throw limit, but it might have been the heat as well. I get that you want to get the revenue, but I wasn’t really able to assess the app to know if it’s worth the 25$/year ### 2/5 — Unable to estimate speed *2026-06-15* That title is about all I hear out of this thing. ### 5/5 — Does what it says it can do *2026-06-15* Awesome app that works as intended. Had a few tech disc/ RipReader sessions and the speeds were lining up within 1mph approx and even the RPMs seemed to be on point. I have a feeling this app is going to be as useful as UDisc to most players who are looking to improve their form/ distance. Well done ### 3/5 — Great concept but not ready *2026-06-04* I really want this to work but it just doesn’t yet. It regularly fails to detect speed and almost never detects spin correctly. Hopefully it continues to improve but I worry it is too limited by the phone hardware. ### 5/5 — Great budget tool for analyzing disc throw speed and spin *2026-06-04* I never write reviews but I’m loving this app. I had a Techdisc and I honestly like this better. The Techdisc is so pricey I would only throw it into a net. As a result it was hard to really see how the throw flew. This measures the speed and spin and then logs the throw and lets you measure the actual landing distance. I also really like how it has a thumbnail showing the exact disc. Really well thought out and as far as I can tell right in line with the Techdisc numbers I’m used to seeing. Great tool for anyone and I’m going to recommend it to my disc golf league mates. ### 5/5 — Best Disc Golf Throw Analyzer *2026-05-14* One-of-a-kind app. Has incredibly useful functions. Developer support and responsiveness is top notch. ### 5/5 — Perfect *2026-05-14* I was impressed with how well this app worked. Has lots of great features! I love being able to throw any disc I want to measure instead of always being stuck with one like tech disc. Not to mention the affordability vs tech disc. ## Frequently asked questions about RipReader ### What is RipReader? RipReader is a disc golf throw analyzer that uses your phone's camera to measure throw speed, spin, and GPS distance. It automatically detects forehand and backhand throws and provides slow-motion playback with metrics. ### How does RipReader measure throw speed? RipReader utilizes your phone's high-speed camera to capture the disc's motion and calculate its velocity, effectively acting as a radar gun without extra hardware. ### Does RipReader require a subscription? RipReader offers a free version with core features. An 'Unlimited Annual' subscription is available for $24.99 per year, which auto-renews unless canceled at least 24 hours before the current period ends. ### Can RipReader track my progress over time? Yes, RipReader saves every throw with slow-motion playback and organizes them into sessions. An analytics dashboard tracks your averages, trends, and personal records. ### Does RipReader have ads? No, RipReader does not contain advertisements. The app is free to use with optional in-app purchases for premium features. ### What devices does RipReader support? Based on the provided data, RipReader currently supports iPhone devices. ### How often is RipReader updated? The latest version of RipReader is 1.6.3, and it was last updated on June 24, 2026. This suggests a relatively frequent update schedule. ### How can I manage or cancel my RipReader subscription? You can manage or cancel your RipReader subscription by going to your Apple ID Account Settings. Payments are charged to your Apple ID at purchase confirmation. ## Version history (last 5 releases) ### 1.7.0 — 2026-08-19 RipReader 1.7.0 introduces Form Studio: pair a second phone to film your throws with your stats overlaid on every clip. ### 1.6.4 — 2026-07-14 • Compare your throws by tag. A shared filter now works across both History and the Spray Chart, so you can line up throws from the same disc, round, or session. • When a throw lands outside the frame, RipReader now tells you which side got clipped so you can adjust your aim, and it no longer flags well-centered misses as edge clips. • Clearer advance-ratio guidance that names your throw type and explains what the number means for your skill level. • Fixed a capture screen that could get stuck with no way out if a throw was detected late. • The compass calibration warning now reminds you to remove magnetic phone accessories, a common cause of interference. ### 1.6.3 — 2026-06-24 - Set your disc size for accurate speed with any disc, including Ultimate and other non-standard sizes. Choose it in Settings, or per disc in your bag. - When a throw lands outside the frame, RipReader now tells you what happened so you can fix your aim on the next one. - AR distance now warns you when you're moving too fast, keeping your measurements reliable. - New in-app tips help you find tag filtering and the spray chart. ### 1.6.2 — 2026-06-13 - Start Speed, Form, or Distance sessions right from the home screen - New welcome screen with quick tips for each mode - Tag a session once and every throw inherits it - Collapsible sessions in history - Undo and re-collect a throw's GPS distance - Units now default to your region, and Disc Speed Match follows your speed setting - More reliable speed readings and assorted fixes ### 1.6.1 — 2026-06-10 A smoother, map-first way to log where your discs land ## Related topics [disc golf distance tracker](https://appshunter.io/ios/topics/disc-golf-distance-tracker) · [disc golf distance](https://appshunter.io/ios/topics/disc-golf-distance) · [disc golf form analyzer](https://appshunter.io/ios/topics/disc-golf-form-analyzer) · [disc golf putting](https://appshunter.io/ios/topics/disc-golf-putting) · [golf tracker disk](https://appshunter.io/ios/topics/golf-tracker-disk) · [disc throw](https://appshunter.io/ios/topics/disc-throw) --- *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 2026-08-25.*