SloMo Coach: Video Analysis
Frame-by-frame form & compare
Only for iPhone
$11.99 · Designed for iPhone. Not verified for macOS.
iPhone
The video analysis tool coaches loved, reborn. One purchase, yours forever. No subscription, no account, no uploads.
Slow it down. See what pros see.
SloMo Coach is a sports video analysis tool for athletes, coaches, and parents. Import any video, scrub it frame by frame, draw right on the play, and compare two clips side by side in perfect sync.
FRAME-PRECISE SLOW MOTION
Step through your swing one frame at a time. Play back at 0.5x, 0.25x, or 0.1x with a filmstrip scrubber and a speed dial built for one-handed use. A broadcast-style timecode shows exactly which frame you are on.
DRAW ON THE PLAY
Telestration tools straight from the TV booth: lines, circles, arrows, freehand, and a dedicated angle tool that measures joint and posture angles in degrees. Drawings attach to the exact frame you made them on.
COMPARE SIDE BY SIDE
Load two clips, drop a sync pin on the same moment in each, and play them back locked together. You against the pro. Before against after. This week against last week.
RECORD VOICE-OVER COACHING
Talk over the clip while it plays. Your commentary is saved with the video and can be burned into the export, so a student can replay the lesson anytime.
EXPORT AND SHARE
Export annotated slow-motion clips as MP4 with your drawings and voice notes burned in. No watermark. Ever.
YOURS FOREVER
One purchase. Every feature. No subscription, no account, no ads. Everything is processed and stored on your device, and nothing is ever uploaded.
Works with any sport: golf, baseball, softball, tennis, soccer, running, dance, martial arts, weightlifting, and more. Best results with slow-motion (120/240fps) video from your iPhone camera.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Compare mode now stays in sync when replaying from the end or stepping frames across clips with different frame rates. Playback audio no longer depends on whether you have recorded a voice note. Transport is locked while recording so voice notes stay aligned. Deleting a clip now asks for confirmation.
The developer, Yoshifumi Sato, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yoshifumi Sato
- Size
- 8.3 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Yoshifumi Sato
