TL;DR. Video Delay Instant Replay is the incumbent in this niche and the most established delayed-feed app for coaches, with roughly 120,000 downloads on Android and a long track record in baseball, golf, and gymnastics. It is also the most expensive way in: a monthly or yearly subscription on the free Android app, or a large one-off licence for the Android PRO build. ReplayR is a rolling-buffer capture app at a one-time unlock, and since August 2026 its Pro tier includes a delayed preview of its own at 5, 10, 15 or 30 seconds. Overlapping mechanism now, very different bill.
| Feature | ReplayR | Video Delay Instant Replay |
|---|---|---|
| Model | Rolling buffer saved on trigger, plus a delayed live feed on Pro | Delayed live feed with buffered playback |
| Lookback range | Buffer 45 s or 90 s free, 3/6/12 min Pro; delayed preview 5/10/15/30 s (Pro) | Buffer as long as device memory allows |
| Pricing | Free + one-time Pro unlock | Monthly or yearly subscription, or a large one-off licence for PRO |
| Save from a smartwatch | Yes, Wear OS app, Tile and Complication | No |
| Hand-gesture save | Yes, open palm (Pro) | No |
| External cameras (GoPro, DJI, IP) | No | Yes, on iOS |
| Drawing | On a single frame (Pro) | Yes, on iOS |
| Frame-by-frame stepping | Yes (Pro), to 0.1× | No |
| Split screen comparison | No | Yes, on iOS |
| Android feature parity | Full, Android is the primary platform | Partial, most advanced features are iOS only |
| Review and discard flow | Swipe keep/toss, trim, frame-by-frame Analyze (Pro), bin with 24 h recovery | Annotate and save from the replay view |
| Account required | No, fully offline, on-device only | No account needed for core use |
| Platforms | Android + Wear OS (iOS in progress) | iOS (flagship) + Android |
Video Delay Instant Replay figures from videodelay.app and its Google Play listings: Video Delay Instant Replay CAM (borama.co.mirrorcoach, free with subscription, 100,000+ installs) and Video Delay Instant Replay PRO (borama.co.videodelay.pro). Check the store for current prices. Last verified 2026-07-28.
The iOS version is the real product: external camera input from GoPro, DJI, IP and USB-C cameras, split-screen comparison, annotation, streaming between Apple devices, and a game-controller trigger. That is a deep toolkit and it explains the price.
The Android version is thinner. Most of the advanced features listed on videodelay.app are iOS only, and the free Android app carries a monthly or yearly subscription, while the separate PRO build costs a large one-off licence. An Android coach is paying iOS-flagship prices for a smaller app.
ReplayR is Android-first. The Wear OS companion, the palm gesture, stealth mode, the delayed preview and the swipe review pass all ship on Android because Android is where it was built. Pro is paid once, no renewal.
Video Delay Instant Replay is built around the delayed mirror: set a buffer, do the rep, watch it play back without touching the device. Annotate in the replay view when a rep deserves it. That is excellent for a batting cage, a bay, or a gym station where the athlete turns to a screen.
ReplayR is built around keeping things. What you save gets trimmed and triaged, so at the end you have a folder of moments instead of a feed you watched and lost. For sideline coaching, where the phone is 15 metres away on a tripod and the athlete never looks at a screen, that is the model that fits. When the athlete is next to the phone and training alone, Pro's delayed preview gives them the mirror as well, on a 5 to 30 second lag, with the buffer still running behind it.
Both keep the core workflow local, and neither requires an account for basic use. ReplayR goes further by construction: nothing leaves the device at all, there is no cloud tier to opt into, and the app works fully offline in a sports hall with no signal.
For clubs filming under-18 athletes, that is often the deciding factor. One-time unlock per device also avoids provisioning seats for every coach, which is the other reason clubs pick it over a per-seat monthly platform.
No monthly fee and no expensive one-off: ReplayR is free to start with a single Pro unlock, and you finish the session with MP4 clips to slow down and share rather than a feed you watched go by.
On Android the free CAM app carries a monthly or yearly subscription, and the separate PRO build sells for a large one-off licence. Prices change, so check the Play Store listing. ReplayR is free with a one-time Pro unlock and no recurring fee.
For saved clips, yes: ReplayR is free with a one-time unlock. For a continuous delayed mirror, ReplayR Pro now does one itself at 5 to 30 seconds, and Delay Camera -Auto Replay- is free with an in-app purchase if you need a longer lag. Neither charges a subscription.
Yes, on Pro, since August 2026. Delayed preview runs the camera screen on a fixed 5, 10, 15 or 30-second lag while the buffer keeps recording, so an athlete can turn around after every rep and watch it without touching anything. The lag ceiling is the difference: Video Delay Instant Replay buffers as long as device memory allows, ReplayR stops at 30 seconds and spends the rest of the buffer on clips you keep.
The developer builds iOS first. External camera input, split-screen comparison, remote device streaming, and much of the annotation work are iOS features. The Android apps cover the core delayed-feed workflow. ReplayR ships its full feature set on Android, including the Wear OS companion and gesture save.
One-time Pro unlock if you want longer buffers, hand-gesture save, and 8K capture. No subscription.
All apps on Google Play
