Record a clear stroke
Place your phone side-on, keep your full body and racket in frame, and record one serve, forehand or backhand at a time.
TennisLens Support by Moon ShardGet back on court.
Practical help for recording, analysing and improving your strokes with TennisLens.
Start here
Upload an existing clip
Choose a short video from your photo library. A 5 to 15 second clip with one visible stroke gives the clearest analysis.
Understand your score
Your overall score combines the movement phases shown in the detailed breakdown. Open each metric to see the coaching cue behind it.
Manage a subscription
Open your iPhone Settings, tap your Apple ID, then Subscriptions. Select TennisLens to review, change or cancel your plan.
Privacy and video handling
Clips are sent for analysis and discarded afterwards. Your saved analysis history stays on your device.
Get a better analysis
Use good light, avoid zooming, keep the camera still and make sure no other player crosses the frame during the stroke.
Common fixes
Most recording and analysis issues can be solved without reinstalling the app.
The camera or photo library will not open+
Open iPhone Settings, select TennisLens and enable Camera, Microphone and Photos. Return to the app and try again.
My clip will not upload+
Check your connection, shorten the clip and try again. If the video is stored in iCloud, wait for it to finish downloading to your phone first.
The analysis failed or looks incomplete+
Use a clip with one player, one stroke and the full body visible throughout. Re-record from a stable side-on angle if joints leave the frame.
My subscription is not recognised+
Confirm that you are signed into the Apple ID used for purchase, then reopen TennisLens. If access is still missing, contact us with the date of purchase. Do not send payment card details.
How do I remove my local history?+
Use the reset option in the app if available, or delete TennisLens from your device. Local history is removed when the app data is deleted.
Still need help?
Send us the stroke type, your iPhone model and a short description of what happened. Moon Shard support normally replies within two business days.