Tennis Blackbox
Challenge Line Calls Like Pros
Free · In‑App Purchases
Record and analyze your tennis matches in real-time with multi-camera support. Now with live H.264 video streaming for smoother, sharper court monitoring.
Tennis Blackbox turns your iPhone into a powerful tennis match recorder and analyzer. Use a dual-device setup to capture every rally in 240fps slow motion, then review your play on an iPad or second iPhone.
RECORD
- Capture matches at 240fps for detailed slow-motion playback.
- Seamless recording with no gaps between video segments.
- Automatic frame verification ensures full quality capture.
ANALYZE
- Automatic court direction detection using on-device machine learning.
- Ball tracking with trajectory visualization powered by OpenCV.
- Browse footage with broad and detailed thumbnail timelines.
MULTI-CAMERA CONTROL
- Connect multiple iPhones as cameras over your local network.
- Live H.264 video preview from each camera at 30fps.
- Monitor up to 8 courts with smart resource management.
DUAL-DEVICE SYSTEM
- iPhone records your match hands-free as the camera.
- iPad or second iPhone monitors and analyzes as the controller.
- Devices connect automatically over local Wi-Fi.
DESIGNED FOR TENNIS
- Landscape interface optimized for court-side use.
- Save videos to your photo library for easy sharing.
- Supports 15 languages.
Whether you are a coach breaking down match footage or a player looking to improve your game, Tennis Blackbox gives you the tools to see what you missed on the court.
A Closer Look
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's New in Version 8.1:
Match Review (10fps)
- Record the entire match as a composite video from all connected cameras.
- Review match scores and plays in-app with fast/slow sliders — no need to open Photos.
- Press Load > "Match Review (10fps)" to browse and play back recorded matches.
Line Call Review (240fps)
- Renamed for clarity: high-speed camera footage for precise line call decisions.
- Now saves the last 20-40 seconds for more complete review coverage.
Connection Stability
- Cameras no longer crash when iPad disconnects or restarts.
- Much faster reconnection when restarting the iPad app.
- Battery and temperature info now updates via status polling (no extra requests).
Recording Improvements
- Recording cancel (long-press Stop) now properly stops all spinners.
- Save/cancel confirmation shown as toast notification.
The developer, Jee Hoon Park, 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
- Jee Hoon Park
- Size
- 88.1 MB
- Category
- Sports
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later.
- iPhone
- Languages
English and 13 more
- English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 1년 사용권 $99.99
- 1달 사용권 $14.99
- 1주 사용권 $6.99
- 하루 이용권 $1.99
- 하루 이용권 $0.99
- Copyright
- © 2024 Tennis Blackbox