Help · Answers from the people who built it

Ask the bench.

02 · 6 answers Shots & scoring Missed serves, wrong labels, fixing the score mid-match. 01 · 3 answers Getting started Pairing, first match, what to wear the watch on. 03 · 5 answers Coach & trends Why one focus, how the norm band is built. 04 · 5 answers PlayDNA+ & billing What is free, what is not, restoring a purchase.
02 — Shots & scoring

The questions everyone asks in week one.

The watch didn't count one of my serves. Why?

A very short serve can fall below the swing detector's threshold. We would rather leave a gap than invent a stroke. Padel users with qualified classification can review and correct supported labels; tennis remains count-only while its classifier calibrates.

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It called my padel bandeja the wrong shot. Can I fix it?

Yes. In a padel session, open Review strokes, choose the supported label or “Not a shot,” and the session updates immediately. If correction sharing is enabled, the anonymous correction is tagged as padel. Tennis never offers bandeja.

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Can I correct the score mid-match without taking the phone out?

That is the point of the Watch app. Scoring runs entirely on your wrist — big split-screen taps for us and them, and a mistapped point can be taken back. Your phone can stay in the bag for the whole match.

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Which wrist should I wear the watch on?

Your racket wrist—the same side as the hand holding the racket. Wearing it elsewhere can reduce stroke-count reliability and, where classification is supported, type accuracy.

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What does “unclassified” mean in my shot count?

For a sport with qualified classification, it means the detector saw a swing but the classifier was not confident enough to name it. Tennis sessions currently use accepted stroke counts without presenting guessed classes.

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What works for tennis?

Tennis supports singles and doubles scoring, deuce and advantage, best-of-one or best-of-three sets, accepted stroke counts, results, health context and activity trends. Classified tennis stroke mix and Coach remain hidden while the separately collected tennis model calibrates.

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01 — Getting started

Before the first match.

Which Apple Watch models are supported?

PlayDNA runs standalone on Apple Watch, watchOS 10 or later — in practice Series 6 and newer. You pick your Watch model and wrist during onboarding, and the app tells you if anything about your setup degrades accuracy.

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Do I need to carry the phone on court?

No. The Watch tracks and scores the whole match on its own. The iPhone is for afterwards — Match Profile, Coach and Trends read the session when you are off court.

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How much battery does a 90-minute match use?

PlayDNA samples motion only while a session is running, and a 90-minute match is designed to stay well inside a normal Watch day. For a long tournament day, a top-up between matches keeps you comfortable.

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04 — PlayDNA+ & billing

Free, Plus and the bill.

What exactly is free?

Sport-specific scoring, accepted stroke counts and your five newest sessions are free for padel and tennis. It is a permanent useful mode, not a countdown trial.

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What does PlayDNA+ add?

Unlimited history and Trends for both sports, plus Match Profile and Coach where that sport's evidence is qualified. Plus does not unlock unqualified tennis classification or coaching.

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How do I restore a purchase on a new iPhone?

Install PlayDNA, sign in with the same Apple Account and tap Restore Purchases in Settings. If nothing shows up, check that the subscription is active under Settings → your name → Subscriptions.

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How do I cancel?

On your iPhone: Settings → your name → Subscriptions → PlayDNA+. Billing is handled entirely by Apple; you keep access until the end of the period you paid for, and your match history stays on your phone.

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I was charged twice — or I want a refund. Who do I ask?

Apple, always. PlayDNA never sees your payment details. Start at reportaproblem.apple.com, and send us a note too — we will help you word it.

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Still stuck

Write to the people who wrote the classifier.

[email protected] · A human reads every message.

Email support
Send a diagnostic
Describe the match, not your identity.

Your iPhone and Watch models, iOS and watchOS versions, and a short description of what happened. If it is about a session: the date, the session mode and roughly how long it ran. No account, no token.