RipReader

Sarulian LLC

In-app purchases

About this app

Measure your disc golf throws with your phone.

RipReader turns your phone's high-speed camera into a throw analyzer. Set your phone on the ground, throw your disc, and get instant metrics. No extra hardware required.

RipReader measures velocity so you know your actual arm speed and GPS distance from your throw to the landing spot. 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 compare 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.

Capture an entire field session, then review everything after.

Ratings and reviews

app is easy to use and is great for quick, in the field metrics. for my 15 throws so far, it seems to be overestimating by about 3-5 mph based on similar feeling throws with a tech disc. but I have not directly compared by throwing the tech disc over the phone so maybe I was throwing fast today. regardless, having easy access to speed data in the field is a game changer

very cool use of technology, the app will pick up leaves above me sometimes, and often misses my shots. But for a free app it is extremely cool to see my speed and spin rate on any disc. Good interface too see each throw with statistics.

I absolutely love the idea of this app and the execution. Unfortunately it doesn't run (yet) on any of the Androis phones I've tried it on (Error: Failed to bind camera). I hope this can be addressed soon. Thanks for the great work!

What’s new

This update gets speed capture working on the newest Samsung phones and adds more visibility into every throw's camera settings.