Tennis, pickleball, badminton and squash on Apple Watch
Your Apple Watch detects and counts each hit. For tennis and pickleball, your iPhone names each stroke after learning yours in a short calibration, and replays it in 3D. How well it names strokes varies from player to player, and you can correct any.
On the App Store. Free to download, with Treblew Pro inside.

Choose your sport
- Tennis: your hits, each forehand, backhand and serve named, a 3D replay of each, and a clip of every rally.
- Pickleball: your hits, each serve, drive and dink named, a 3D replay of each, and a clip of every rally.
- Badminton and squash: your hits counted on Apple Watch, each with a 3D replay.
What you need
- An iPhone with iOS 17 or later.
- An Apple Watch with watchOS 10 or later.
Free and Treblew Pro
Recording is free. Stroke detection and rally recording are part of Treblew Pro, and the Free plan includes one try of each in every sport they cover.
Questions
Can Apple Watch count my tennis or pickleball hits?
With Treblew, yes. The watch detects each hit while you play tennis, pickleball, badminton or squash. Each hit is counted as you play.
Does it tell me which stroke I hit?
For tennis and pickleball, yes. Your iPhone names each stroke from the watch’s motion, matched to calibration strokes you record once: forehand and backhand topspin and slice, and serve in tennis; serve, forehand and backhand drive, and dink in pickleball. Badminton and squash count hits without naming strokes. How well it names strokes varies from player to player, and you can correct any of them.
Can I see a stroke again?
Each named stroke has a 3D replay of your wrist’s path on iPhone, from behind, the side or above.
Can Treblew film my rallies?
Yes, on iPhone. Prop it up courtside and Treblew films the session and cuts a clip of every rally for tennis and pickleball. In tennis, each point in a clip is its own row, found from the sound of the hits, with the whole clip a tap away. Rally recording is part of Treblew Pro, with one free try in each sport.
Is it free?
Recording sessions is free on iPhone and Apple Watch. Stroke detection is part of Treblew Pro, and the Free plan includes one try in each of tennis, pickleball, badminton and squash.
Treblew is free to download on the App Store.