Video Overlay is a pocket film room. Stack two clips, sync the key moment, scrub in slow motion, and step frame by frame — then export the comparison.
Compare a fastball to a changeup from the same windup. Last month's golf swing against today's post-lesson swing. Two softball cuts at contact. Video Overlay answers it in seconds — no editing software, no exporting to a laptop.
Line up release, contact, plant, or impact with a two-point tap — or nudge clips by tenths of a second until they match.
Stack clips with adjustable opacity and blend modes, or place them in two columns. Mirror a clip for lefty-vs-righty looks.
Play both clips from one shared clock at 0.25×, 0.5×, or 1×, with a precision timeline and an auto-looping motion window.
Step a single frame forward or back to find the exact instant something breaks down. Frame number and timecode always on screen.
Toggle center, ground, and body-angle guides. Pinch, drag, and rotate the overlay to register two clips precisely.
Save the finished overlay or side-by-side comparison straight to Photos to share with an athlete — watermark-free with Pro.
Import two videos from your photo library — the same athlete on two days, or two different reps. Trim each one to the useful motion window.
Pick the key moment and let Video Overlay line the clips up, or nudge them by hand. Adjust opacity, scale, and rotation until they register.
Play both together in slow motion, step frame by frame, capture stills, then export the comparison to your Photos library.
Compare two videos and preview in slow motion for free. Unlock exports, frame stepping, still capture, and watermark-free output with Pro. Start with a 2-week free trial on monthly or yearly — cancel anytime.
Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple Account → Subscriptions. Prices shown in USD and may vary by region.
Video Overlay is coming to the App Store. Built for iPhone & iPad.
Requires iOS 17 or later · Photo library access