Serve speed: tap 「Measure serve speed」 on Home, set the phone behind the baseline (either corner), and see your speed after each serve — the first serves are free. One live coach note per serve, and a serve score card. Record a serve session without signing in and save it later. Camera-placement tips before you record. Also: a serve speed we can't measure reliably now shows as 「—」 instead of a guessed number; the free-plan clip limit (150 s) is checked when you pick or record, not after the upload; heights and distances follow your device units (feet or metres); switching language no longer blanks the Home page; cloud analysis now shows even when the phone saw nobody; storage-full is shown before recording, not after.

Fixed a crash when starting a recording on some devices. Feedback can now be sent without signing in. Serve line calls (in/wide/long) are only shown when they can be judged reliably. Stability fixes.

Fixed an upload that could fail after the app was sent to the background mid-upload. Stability fixes.

Highlights: fixed a blank screen when opening a reel — playback now starts right away. Serve mode: one clear coach tip per serve in large text, station lock now works under night-court lighting, and landing-spot timing is more accurate. Removed a recurring "results unavailable" notice. Stability fixes.

Highlights open faster: the cover appears instantly, reels pre-load as you scroll, and a note shows while HD video buffers on slow networks. Share a highlight with your top speed in the caption. Serve mode: more reliable speed timing and clearer notes when a speed can't be verified. Stability fixes.

Serve mode: serves are now recognized from behind the server, a measured landing point is kept even when the speed is uncertain, and a short voice tip plays after each serve (mute any time). Fewer rating prompts.

Improved serve detection and ball-speed reliability, with more consistent coaching feedback immediately after recording.

Improved serve-speed and landing-call accuracy, plus more reliable results and local replay.

- Improved on-device Serve Station stroke detection, ball trajectory, landing, and speed results - Reduced skeleton lag and jumping during recording - Improved recording finalization and protection of on-device results

- Large videos selected from Photos are now compressed before upload for faster, more reliable analysis while preserving 60 fps when possible - Uploads now recover more reliably after a device restart or unlock - Improved serve tracking and ball-speed confirmation - Improved privacy controls and sign-in behavior for users in mainland China

- Serve: a serve into the net now shows a clear "Net fault" call instead of a missing number - Notifications no longer interrupt you while recording — they wait quietly in Notification Center - Fixed a stuck "Analyzing" activity that could linger in the Dynamic Island indefinitely - Clearer upload feedback: every rejection now tells you exactly how to fix your video - Serve tracking accuracy and stability improvements

- Fixed a crash loop that could kill the app right after launch while processing a long video - Pro: coaching comments are now unlimited — no monthly quota - Replay opens the moment you stop recording; uploading continues in the background with a clear "cloud analysis in progress" banner - Serve: player tracking no longer locks onto the wrong target, and obviously wrong skeletons are never drawn - Serve: a setup hint warns you before you drift out of frame - Serve shots are labeled "Serve 1/4" so counts read clearly - Rally videos are no longer mislabeled as serves

- Stability: smoother skeleton tracking and more reliable swing detection while recording - Serve: court detection is faster and far more reliable — it keeps working while you adjust the phone, and no longer goes quiet if the phone was lying flat when you opened Serve - Serve: live results carry over between back-to-back recordings - Serve always records with the full 0.5x ultra-wide view - Faster results after recording — heavy analysis now runs in the cloud - New challenge: record 3 forehands + 3 backhands to earn a week of Pro - Consistent 1080p60 video quality for recording and upload - Rally mode: live skeleton and player tracking fixes

Serve Mode can now show measured ball speed and start voice feedback sooner when the full serve trajectory is captured. We also improved reliability when swing detection and ball-tracking results arrive in either order.

Serve Mode now stays locked on the intended player more reliably, even through brief tracking gaps. Videos imported from Photos can now show recording-quality guidance when frame rate or lighting may affect analysis.

Coach Tina can now proactively reach out with personalized guidance. New unread message badges and push links take you directly to the relevant conversation. Includes message and badge reliability improvements.

Serve Mode arrives in Toach 1.5: • Guided court setup gets you ready to record in seconds. • Track every serve with live speed feedback. • Replay each serve with its flight path, bounce, predicted speed, and coach comments. • Enjoy smoother landscape full-screen playback, easier scrubbing, and more reliable serve detection.

- Sharper ball tracking — better coverage on far-court and fast rallies - A fresh, faster onboarding - Serves are now called as serves in live coaching (no more "backhand") - Natural Chinese voice for coach audio - Send feedback right from the app - Uploads keep going in the background and pick up where they left off - Watch upload and analysis progress in the Dynamic Island

- The analyzed player stays locked on you — no more switching to someone walking past or on the next court - Accepting a challenge unlocks Pro right away - Fewer repeat upgrade prompts - Playback and stability improvements

- Serves recorded in landscape are now labeled correctly (no longer read as forehands) - Back-to-back recordings started in the same minute no longer overwrite each other - Stability and polish

- Training progress now updates reliably right after each session is analyzed - Highlights always play your latest edit - Better stroke labels: forehands are no longer mistaken for serves on front-facing videos - Easier ways to reach us when something goes wrong - Stability and polish

- New placement guide: see the best spots to put your phone before you record or upload - Session cards now show upload progress and a cloud-synced check - Smarter speed analysis: high-frame-rate clips are measured in the cloud for better accuracy - See your remaining coaching credit right in the chat - Stability and polish

- Major stability fix: opening the app from a notification no longer crashes on large libraries - Big upgrade to swing detection - serves are now caught far more reliably - Every recording is now verified in the cloud, so real swings are never missed by on-device detection - Faster, lighter session browsing - Stability and polish

- New: pick your recording resolution & frame rate right on the camera screen - If your phone gets hot, recording keeps going and finishes analyzing in the cloud — no more interruptions - Clearer flow when no swings are detected — one tap to re-analyze in the cloud - Fixed the challenge card resetting to 0, and a mistimed rating prompt - Stability and polish

- Share your highlight reel in one tap — TikTok, Instagram, and more now show up right in the share sheet, plus Save to your album - Training progress now counts every session, including clips re-analyzed in the cloud - Recordings that overheat or lose tracking now finish analyzing in the cloud automatically — no more "analysis incomplete" prompt - Sharper serve coaching feedback - Stability and polish fixes