Train Smarter
Perform Better!
Enhance your feedback methods with delayed video technology. Instantly replay actions and help your players improve their form and avoid injuries. Save time and build better athletes! Ideal for individual training and team workouts. Simple yet powerful video delay app for coaches, athletes, and golfers.
During my time in professional baseball, including roles as a Hitting Coordinator and Major League Hitting Coach with the Houston Astros, and now as the Farm Director with the Chicago Cubs. I’ve been fortunate to work with some of the best minds in player development. Across those environments, Video Delay Instant Replay has been one of the most consistently valuable tools we’ve used.
Review Actions Instantly using Hands-Free Delayed Video Feedback
Frustrated by making the same mistakes? Turn your device into a sports mirror that replays your actions with a delay. Watch, correct, and improve your form in real-time. Hands-free video feedback for more efficient and satisfying training.
💡 Pro Tip: Swipe the screen to enter Dynamic Buffer and extend the replay on the fly. Never miss a moment!
Analyze Athlete's Technique
& Improve Your Coaching
Replay in slow motion or inspect frame by frame for in-depth movement analysis. Highlight elements needing refinement: add visual markups, measure angles and time.
Annotate the video and share clips with players. Track your athletes’ progress and assess how changes in technique impact their performance.
Train Smarter: Features for Better Form & Faster Results
- REPLAY analyze frame-by-frame in slow-motion, add drawing or voiceover.
- REMOTE sync your Apple devices, or connect an external camera (GoPro®, IP)
- DRAW add visuals, measure time or angles.
- SAVE & SHARE your last action.
- SPLIT SCREEN review side-by-side with different delay times and multi camera support.
- RECORD replay player’s performance while continuing to record live or buffered video.
All the features except Replay Review are available only on iOS devices.
Testimonials
Download VDIR
& improve your form
Guides
How Underwater Video Feedback Transforms Swimming Training
How to Use an External Camera with the Video Delay App
Video Delay for Schools & Clubs: Licenses Without VPP
How Video Delay App Accelerates Softball Pitcher Development
See Your Golf Swing Replay at the Range
How Coaches Use Video Delay for Softball Training
Hands-Free Replay: Use a Game Controller with Video Delay
Video Delay App for Android
How to Learn Basketball: Solo Training Plan with Video FeedbackFAQ
What is the Video Delay Instant Replay app?
The VDIR app provides instant video feedback by displaying a delayed replay of actions, allowing athletes and coaches to analyze and improve performance without needing to press record.
How do I set up the app for individual practice?
- Position your device, preferably on the tripod, ensuring the front camera faces you.
- Select practice mode: DELAY or SLO-MO
- Press the START button and set a buffer time suitable for your activity (e.g., 3-5 seconds for quick actions like swings; 30-40 seconds for exercises like squats).
- Perform your action and watch the delayed video to instantly assess and correct your form.
Can the app be used for team training sessions?
- After each repetition, athletes can review their performance while the delay continues in the background.
- The Dynamic Buffer allows athletes to extend buffer time and adjust video feedback to their needs.
- Streaming playback to a TV screen benefits players who can learn from each other.
- Replay View lets coaches annotate and save videos for later analysis.
Is the app available for both iOS and Android devices?
Yes, the Video Delay Instant Replay app is available on the App Store for iOS devices and Google Play for Android devices. However, iOS and Android apps have different features. Most of the features described on this website apply to the iOS version of the app. For details on the Android app feature list, please check out the description on Google Play.
Can I record a video with the VDIR app?
You can record your training sessions using the video delay app. Recording in DELAY mode starts when you hit the record button and captures one video file. Recording in SLO-MO mode* captures each slow-motion replay as a separate video. Videos are saved to your device’s Photos or Documents folder. You can select where to save the recordings in the app settings.
*Works only on iOS devices
Can I connect the app to an external screen?
You can connect your device to an external monitor or TV to provide more precise feedback during training sessions. This benefits coaches who want to display instant replay to multiple athletes simultaneously or when working out in a larger sports facility. To share the screen on iOS devices, use AirPlay or HDMI cable.
Can I stream between iOS devices using Video Delay app?
You can connect two iOS devices with the installed VDIR app. One device, let’s say an iPhone, can work as a camera capturing your actions. The other, let’s say an iPad, can receive the camera feed and work as a remote control for the app.
How to stream between Apple devices using the REMOTE CAMERA feature:
1. Open the Video Delay app on the devices you would like to connect.
2. On the Start Delay Screen, tap the [Remote] button.
3. On your iPhone, select Stream and tap [Start Stream]
4. On your iPad, select Control, tap [Join & Control], and enter the code to connect.
Note: You can stream from both iPhone and iPad.
How can I analyze my moves in detail using the app?
The app’s Replay View, available on iOS devices, allows for accurate movement analysis. You can watch your actions in slow motion or frame-by-frame and measure angles to check your technique. You can also precisely select a crucial part of your actions using A & B markers and save it for further assessment.
Can I add markups to the video delay footage?
Yes. Drawing tools let you add on-screen markups to make your feedback clearer. Just click the Pencil button to get started. First, pick a color, then choose the tool you want. Slide your finger across the screen when drawing lines and freehand shapes. To measure angles, tap twice. You can also add a vertical or horizontal line in the center of the screen to ensure perfect pose alignment during each repetition. Once you are finished with your markup, press Done. Later, you can choose whether to save the videos with or without the markup.
What types of sports or activities can benefit from using the app?
The app is versatile and can be used by individual athletes or sports teams for various activities, like baseball, volleyball, gymnastics, golf, swimming, archery and tennis. It’s recommended for assessment when working out alone and for training sessions with a coach, including softball, football, weightlifting, martial arts, pilates, or even physiotherapy. Coaches can also utilize it to analyze team drills in sports like soccer, basketball, cricket, and water polo. Gyms and sports facilities for gymnastics training or dance practice can also benefit from a video delay system.
Does using the app consume a lot of device storage?
No. When using the app for delayed video feedback without recording, the camera frames are temporarily stored in the device’s RAM and continuously refreshed. The buffer memory is cleared every time you exit the app.
Can I use Video Delay app in portrait with an external screen?
Yes! External screen rotation is now fully supported and works great. It especially useful for golf coaches and gyms with vertically mounted TVs.
→ See step-by-step setup with screenshots
Can I display feed from two cameras simultaneously?
Yes, you can use two cameras at the same time. To set up Split Screen with different cameras, follow these steps:
On the Start Delay Screen, tap the [Split] button -> on the Split Screen, tap the [Remote] button -> select the camera feed you would like to add: Control (for Apple devices), GoPro, or IP, and follow the instructions to connect.
This way, one side of the Split Screen will display the camera feed from your device (like an iPad or iPhone), while the other side will show the Remote Camera. You can also set a different delay for each camera feed.
Example: Swimming coaches use dual cam support, combining an underwater camera with the device’s own camera, to collect more feedback on swimmers’ mechanics.
Can I use my Android phone as an external camera?
Absolutely! You can use your Android phone as a high-quality webcam for the Video Delay app.
Yes, provided your Android device supports USB-C webcam mode (standard on devices like Google Pixel) and your iPad has a USB-C port.
Open the Video Delay app on your iPad.
Connect your Android phone to your iPad using a USB-C cable.
On your Android device, open USB Preferences.
Scroll to “Use USB for” and select Webcam.
The Video Delay app should now recognize your phone.
You can then adjust the resolution and frame rate (fps) inside Video Delay by going to Settings > Video format.
Can I control Video Delay Instant Replay app with a gamepad?
Yes, with game controller support, you can control the app from across the field, batting cage, or the gym.
Most app features are linked to keyboard keys. That means you can use a controller to start a delay, manage replay, save clips, and rewind the playback without touching the screen.
We recommend the 8BitDo Micro for its compact size, but any controller that works like a keyboard should do.
Learn how to customise your controller on our blog.
Can I use an external camera with Video Delay?