Beta.
Watch your climbing the way it was meant to be watched.
Inertial scrubbing. Flick the reel. Video follows your finger with weight, friction, momentum. Every frame snaps with haptic feedback.
Not a filter. Not an editor. Not an AI coach. Just the way reviewing your beta should have always felt.
(ScrubEngine in action)
What's in v1
Inertial scrub
Flick, drag, hold. Frame-by-frame haptics. 60fps preview.
0.25× slow
Hold to slow. Release to resume. No buttons.
A/B takes
Stack two attempts. Swipe to compare.
Why I'm building this
Climbers shoot beta videos every session. Then they scrub Photos.app with sticky timeline drag, or send to OnForm/Hudl that feels like coaching enterprise software. Nothing feels like the activity itself — quick, embodied, repeated.
I'm an iOS developer. I'm tired of treating video like a database row. Beta treats video like a physical reel.
Get the first 50 invites
TestFlight beta launches when ScrubEngine hits production-grade. First 50 send a clip — I'll review your form 1-on-1 and tune the scrub to your style.
First 50 climbers / dancers / movers. —