01 / Rally review
Every rally. Worth a replay.
Record or import a match. Turn a long video into rallies that are easier to revisit, so you can spend more time reviewing your game.
Record or import → Split into rallies → Review
Rally review. Train smarter.
Make everysession count.
Record table tennis and badminton, review rallies, compare technique in video and 3D, and plan your next practice.
iPhone · iPad · Apple Watch · Free with in-app purchases
DUOLIAN / Inside the app
Your next step starts with a replay.
From a rally on court to a more focused practice.
02 / Technique
Side by side. See the difference.
Choose a reference or compare two videos of your own. Use frame-by-frame playback, skeleton overlays and angle information to find what to work on next.
Compare a reference with your own technique.
03 / Motion capture
A new angle on your game.
Explore both movements in a shared 3D view. Step through the motion to see how body positions and movements differ.
Cloud 3D comparison requires a connection and available comparison credits.
04 / Practice plans
Your practice. Your plan.
Choose ball-machine drills, adjust the settings, and combine drills and durations into a practice plan. Follow your plan, then look back at your training records.
Ball-machine training is for table tennis and requires compatible hardware.
05 / Web app
On a bigger screen, see the match more closely.
Import a match in your browser and get a timeline cut into rallies. Replay rally by rally on a large screen, drag the timeline to fix a boundary, then export the clips you need.
Import → Rally timeline → Drag boundaries → Export clips
Same Duolian account, with membership shared with the iOS app.
Your sport. Your next session.
Table tennis
Compare technique and review matches. Scan a code to start a match, record and confirm scores, or build a ball-machine practice plan.
Badminton
Record matches, review rallies, choose a reference or compare your own videos, and save your training and analysis records.
Apple Watch
Control training and match recording with your iPhone, and check your session status. Supported workouts can record heart rate.
Before your first session
Do I need a ball machine or an Apple Watch?
No. Start with your iPhone to record and replay videos or compare technique. Ball-machine drills require compatible hardware; watch features require an Apple Watch.
Are my videos uploaded?
Local video recording, playback and local technique comparison do not require consent to cloud AI processing. Cloud analysis uploads the relevant media only with your consent.
What does Premium include?
Monthly and annual plans have the same benefits: 120 minutes per week for intelligent analysis and rally segmentation, plus 8 cloud-based 3D Body comparisons per month. See the app and App Store confirmation for current pricing.
DUOLIAN / iOS
A replay today. A focus for tomorrow.
Make every practice more focused with Duolian.
Download on the App StoreiPhone · iPad · Apple Watch · Free with in-app purchases
