See where to place your phone with new pitching, swing, and tee filming guides. Review videos, add coaching feedback, and follow a 7-day training plan.
Turn a baseball video into a clearer plan for your next practice.
SlyMask brings video review, training plans, and game records to players, parents, and coaches. Use it on iPhone and iPad with no account required. Video analysis runs on your device.
REVIEW PITCHING AND SWING MECHANICS
Import a pitching or swing video and use AI motion analysis to review key phases, body keypoints, angles, and training suggestions. Step through frames, adjust playback speed, save reports, and compare compatible records.
Bat-speed estimates show their source. When a video cannot support an estimate, capture tips help you prepare a better recording.
KEEP COACHING FEEDBACK IN THE VIDEO
Draw lines, circle key movements, and record spoken feedback while reviewing a video. Continue editing a saved project or export a video with synchronized commentary for players to watch again.
TURN ANALYSIS INTO PRACTICE
Create a 7-day training plan from an analysis, follow daily tasks, and track completion. Eligible plans include one reassessment from Day 7 without using a regular AI analysis credit; see the in-app eligibility details.
Manually log hitting sessions, chart pitch locations, and enter measured player-assessment data.
RECORD THE GAME, REVIEW THE PERFORMANCE
Keep baseball and slow-pitch softball scores, plate appearances, and game events, including an optional 1–1 starting count for softball. View team-season and player-game statistics, export game records, and prepare with team templates and a tactics board.
TOOLS FOR THE FIELD
Keep AR distance measurement, equipment checklists, a baseball glossary, and practice resources at hand. Guided tee capture helps you set up the camera and record high-frame-rate video for supported ball-flight and launch-angle results. Tee capture requires a device capable of at least 120 fps and suitable recording conditions. AR measurement requires a compatible device and surroundings.
YOUR TRAINING, ON YOUR DEVICE
Manage local records, export reports and backups, and choose what to share. No registration, third-party advertising, or tracking SDKs.
Analysis and speed estimates are training references. Camera angle, frame rate, and occlusion can affect results. Tracking confidence is not speed accuracy. Some metrics are unavailable when there is insufficient evidence; history comparisons show only compatible results.
FREE ACCESS AND MEMBERSHIP
Some features include free usage allowances. Monthly, yearly, and lifetime options provide additional access. Benefits, prices, and periods are shown in the app and App Store.
Monthly and yearly subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Payment is charged to your Apple Account. Manage or cancel subscriptions in your Apple Account settings. Lifetime access is a one-time purchase.
Privacy Policy: https://shawlion-privacy.github.io/slymask-privacy/
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
5.0
out of 5
1 Ratings
What’s new in 3.17
• Visual filming guides show overhead camera positions alongside example views for pitching and batting.
• Clearer tee setup illustrations explain camera height, space for the ball to exit, and where to place the ball-center marker. Tap an illustration for a larger view.
• New comparisons show full-body framing and backlighting, plus how to hold your phone for AR distance measurement.
• Matching examples now appear in filming requirements, FAQs, and recording improvement tips, with consistent distance and angle guidance.
• Illustrations work offline, with captions in Simplified Chinese, Traditional Chinese, English, Japanese, and Korean.
• Fixed the landscape Tee capture layout on smaller screens so longer status messages leave room to view guides and access photo import.
Version 3.17
The developer, 肖龙 刘, 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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
肖龙 刘
Size
194.5 MB
Category
Sports
Compatibility
Requires iOS 17 or later.
iPhone Requires iOS 17 or later.
iPad Requires iPadOS 17 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.
Languages
English and 4 more
English, Japanese, Korean, Simplified Chinese, Traditional Chinese