# SlyMask baseball — AI Baseball Training & Stats > AI-powered baseball training analysis app for pitching and hitting performance. (iPhone/iPad app by 肖龙 刘.) - Source: https://appshunter.io/ios/app/slymask-baseball/id6758651416 (this page in markdown: same URL + `.md`) - Developer: [肖龙 刘](https://appshunter.io/developer/1871961899) - Category: Sports, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 12+ - Requires: iOS 17 · 172 MB - Languages: Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), American English, Korean - Released: 2026-02-23 - Data updated: 2026-08-14 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/slymask-baseball/id6758651416/reviews.md ## What is SlyMask baseball? Record it. Understand it. Train for change. SlyMask is a baseball training and analysis tool for players, parents, coaches, and enthusiasts. No extra hardware is required. Record or import a pitching or batting video on iPhone, receive on-device motion analysis, and turn the result into a practical training plan. From one analysis to measurable progress 1. Import a pitching or batting video. 2. Review key motion phases, angles, confidence, and training guidance. 3. Create a personalized 7-day plan from that result. 4. Complete short daily drills and reassess on Day 7. 5. Compare reliable before/after metrics and create a progress report. Key features • AI Pitching Analysis Review key pitching phases and motion changes, including rhythm, posture, movement sequencing, and release timing. • AI Swing Analysis See swing path, key body movement, contact timing, and overall trends in a more understandable visual report. • Personalized 7-Day Training Turn analysis into short daily drills focused on the areas identified in your video. The included Day 7 reassessment does not consume a free AI credit. • Before/After Progress Reports Complete the plan to compare sufficiently reliable metrics and create a shareable seven-day report. A non-subscriber who optionally completes sharing a report can earn one bonus AI analysis, once per report and up to three times per week. Sharing is voluntary and does not restrict existing features. • Video Review and History Review trajectories, keypoints, and motion phases with video playback. Save analyses and compare changes over time. • Game and Training Records Track game situations, players, pitch locations, hitting sessions, and statistics, with export and review tools. • Practical Baseball Tools Use the tactics board, AR distance measurement, player assessments, and equipment checks. Privacy by design • Videos and AI analysis stay on device. • No account is required. • No third-party advertising or tracking SDK. • Training videos, reports, and reward state are not uploaded. • Seven-day reminders use local notifications. Membership and purchases Some advanced features require a monthly subscription, yearly subscription, or lifetime purchase. Monthly and yearly plans automatically renew unless cancelled at least 24 hours before the current period ends. Apple charges your Apple ID account, and subscriptions can be managed or cancelled in Apple account settings. Lifetime access is a one-time purchase. Actual price, period, and benefits are shown in the App and App Store. Privacy Policy: https://shawlion-privacy.github.io/slymask-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - AI Pitching Analysis - AI Swing Analysis - Dynamic Video Playback - History and Comparison - Hitting Training Logs - Pitch Zone Tracking - Apple Watch Support ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | SlyMask棒球会员 | $3.99 | per month | | SlyMask棒球会员 | $19.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | SlyMask永久会员 | $39.99 | one-time | ## Frequently asked questions about SlyMask baseball ### Does SlyMask baseball have ads? SlyMask baseball is ad-free, allowing for an uninterrupted training analysis experience. This means you won't encounter any advertisements while using the app's features. ### What devices does SlyMask baseball support? SlyMask baseball is compatible with iPhone, iPad, and Apple Watch devices. This broad support allows for versatile use across your Apple ecosystem. ### How much does SlyMask baseball cost? SlyMask baseball is free to download and use. Some advanced features require a subscription, with options for monthly at $3.99 or yearly at $19.99. ### What is the age rating for SlyMask baseball? SlyMask baseball has an age rating of 17+. This is likely due to the complexity of the analysis and the target audience of serious players and coaches. ### How often is SlyMask baseball updated? The latest version, 3.04, was released on June 23, 2026, indicating a recent update. The app was initially released on February 23, 2026, suggesting a relatively active development cycle. ### Can I share my analysis from SlyMask baseball? Yes, SlyMask baseball allows you to share training results, analysis, and visual content with coaches, teammates, or friends. This facilitates easier review and communication of performance data. ### What kind of analysis does SlyMask baseball offer for pitching? SlyMask baseball offers AI Pitching Analysis that examines rhythm, posture, and overall motion consistency from multiple angles. This provides detailed insights into pitching mechanics. ### How do I cancel my SlyMask baseball subscription? Subscriptions for SlyMask baseball automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple ID account settings. ## Version history (last 5 releases) ### 3.10 — 2026-08-11 Competition records added: Baseball / Softball Added video guidance function, coaches can provide voice and video annotation guidance based on students' videos, making it convenient for students to modify and improve their movements. Stable Human and Bat Recognition Optimize human keypoint detection and motion continuity judgment. Reduce missed detections, false detections, and keypoint jitter. Added baseball trajectory recognition optimization Merge duplicate or overlapping ball trajectories. Filter out flashes, reflections, and background noise. Filter out "zigzag" trajectories that do not conform to actual motion patterns. The moment of hitting the ball is judged more accurately Simultaneously check the ball trajectory before and after the swing. Adjust the contact distance dynamically based on the bat length. Add a validation for the ratio of baseball size to bat length. Record metrics such as changes in ball size, trajectory efficiency, and ball contact evidence. It facilitates the subsequent identification of misjudgment causes and the continuation of training optimization. Test coverage enhancement Added tests for false reflection recognition, abnormal sphere dimensions, and erratic trajectory jumps. Fixed an issue where some high-definition, slow motion, HDR, and high frame rate videos may exit during the analysis process. Optimize video compatibility processing, memory usage, and analysis task scheduling. Improve the posture and motion trajectory analysis of high frame rate and variable frame rate videos. Fixed several stability issues during cancellation, retry, save, and export processes. Fixed the issue where the horizontal and vertical screens and AI skeleton buttons occasionally fail to operate or have inconsistent states during coach guidance. Optimize some interface interactions and overall user experience. ### 3.08 — 2026-07-16 bug flix ### 3.07 — 2026-07-14 1. More reliable on-device pitching and swing analysis, with fewer false readings from low-quality frames and keypoint jumps. 2. Improved release/contact timing and report confidence, plus a fix for Contact Time occasionally showing 0. 3. New personalized 7-day plans with short daily drills and an included Day 7 reassessment. 4. New shareable 7-day progress reports. Non-subscribers can optionally share a completed report to earn one bonus AI analysis, once per report and up to three per week. 5. A more focused app: the lightly used Apple Watch companion and Game Center integration have been removed, with general stability improvements. ### 3.06 — 2026-07-10 complex scenario This time, we have reinforced the continuous game situation that you are particularly concerned about: Double stolen bases allow for the selection of two runners to advance separately without increasing the number of hits, facing hitters, or pitches. In the same game, each runner can choose the reason for their advance: hitter advance, stolen base, failed stolen base, wild throw, trap, pitcher foul, mistake, fielder selection, sacrifice advance, defensive disregard, etc. A runner can steal two bases in a row, and the system will split them into two stages and count the two stolen bases. When the hitter safely lands on base and another runner advances and is killed, the type of elimination and defensive route of that runner can be recorded separately. When strikeouts and stolen bases fail simultaneously, hitter K and runner CS will be saved separately, without mistakenly writing runner as strikeouts. Undead strikeout supports catching or throwing reasons, and both hitters and forced runners will save the correct reasons. Catcher obstruction, forced base entry, fielder selection, sacrifice fly, double kill, and triple kill are all handled according to the base position status. The third elimination will automatically switch to half a game; Deleting this event can restore the previous half innings, outs, base position, and lineup status. Continuous situation events will not result in incorrect advances in pitches, nor will they result in incorrect increases in pitching or facing hitters. The strike result, number of outs, and runner finish line will no longer be selected repeatedly in two places; The number of outs is automatically calculated based on the results and runner status. ### 3.05 — 2026-07-10 Significantly improve the game recording function, providing clearer and more detailed records of the detailed process during the game. ## More apps by 肖龙 刘 - [喵汪咔嚓相机](https://appshunter.io/ios/app/id6759184716) - [职业反应测试](https://appshunter.io/ios/app/id6760889996) - [路亚参谋-钓鱼工具](https://appshunter.io/ios/app/id6788831415) All apps by 肖龙 刘: https://appshunter.io/developer/1871961899 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*