Help & FAQ

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Getting Started

Can I use the app without signing in?

Yes, on iPhone. You can record matches, view stats on this device, and transfer saved matches from your Apple Watch. The web app requires sign-in and a completed profile before recording or accessing account data.

Why should I sign in?

Sign in to back up your matches, find tennis friends, and share or receive match records.

Recording

Can I change a saved score?

For a match you created, open its details and tap Edit. Changing the result does not rebuild its point-by-point history.

Does leaving a match save it?

Choose Save & Leave to review and save the score, Discard & Leave to discard the unsaved session, or Keep Playing to return. Closing the result preview does not save the match.

Will an unsaved iPhone match return after the app closes?

No. Unsaved matches won’t be restored if the app closes. Save before leaving. Switching briefly to another app or locking the screen keeps a session only while the app remains alive. Saved matches, pending uploads, and Watch records are separate.

Will an unsaved web match return after I refresh or close the page?

No. Save before refreshing or closing. A brief switch away can keep the current page alive, but the browser cannot guarantee a warning before closing. If saving fails, keep the page open and retry. If your session expires, sign in to the same account to save the current match.

Scoring Rules

Can I play several standalone tiebreak rounds?

Yes. Choose Tiebreak, enter Number of Rounds, and choose the point target. Every round uses the same target and requires a 2-point lead. All configured rounds are played, even if one side already has more wins. The next round starts with the player after the previous round’s first server.

How are multiple tiebreak rounds scored?

The match score counts rounds won, and each Round shows its actual point score. An even number of rounds can end in a draw. Saving early counts a leading unfinished round; tied unfinished rounds do not add a win. A single-round match keeps its point score as the main result.

Stats

Where can I see detailed stats?

In Stats, tap the win-rate card for your personal details. Tap an opponent to see your matches and comparisons with that person.

Friends & Sharing

What is a local player?

A local player is a name you save for an opponent or partner. They do not need an account, and you can link them to a real friend later.

How do I find a friend?

Sign in, open Players, and search by their full email address, Player ID, or nickname. Check the result before sending a friend request.

What happens if I remove a friend?

Existing shared matches stay in both accounts but stop receiving updates. Adding the friend again does not restart updates to those old copies.

Devices

Can DeuceCount keep my watch screen on?

On your watch, open Settings → Display & Brightness → Wake Duration → Wake for 70 Seconds. This changes the system wake duration, not an unlimited screen-on mode. Always On depends on your model and system settings: SE 3 supports it; SE and SE 2 do not. Low Power Mode may disable Always On. DeuceCount cannot force these settings.

Why is a saved Watch match missing from my iPhone?

Check Matches on the watch first. Bring the devices close together and open both apps. Saved matches transfer automatically when the paired apps can communicate. Keep the local record if transfer or account backup fails. New Watch match formats require the updated iPhone App.

Can I score without Apple Health access?

Yes. Use Score Only if Health access is unavailable. The Watch App checks whether Health permissions need to be requested when it first opens. Granting access does not start a workout; Start Workout starts it and checks workout writing access again.

What is the difference between a workout and a match?

Tap Start Workout to begin one tennis workout. You can create and save several matches during it; saving a match returns to preparation and keeps the workout running. Use Controls → End Workout to finish the whole workout. Returning home does not end it.

How do I pause a workout?

Swipe right from preparation or scoring to the left-hand Controls screen, then tap Pause. Workout time, match time, point entry and automatic score prompts pause together. Tap Resume to continue, and swipe left to return. Leaving From iPhone cancels that waiting request. The waiting screen reconnects automatically when the paired apps can communicate; no Retry button is needed.

Can I keep score without Health access?

Yes. If workout writing is unavailable, use Score Only. Match records and local timers still work. A missing heart-rate sample is shown as a dash; it does not prove that access was denied. Local timers alone do not provide HealthKit background sensor recording.

How do I start a shared match from iPhone?

Start a workout on Watch and choose Create on iPhone. In the paired iPhone App, choose Start Live Match, configure the players and rules, and start. The Watch must confirm before both devices open the same match. Ordinary iPhone matches stay independent when Watch is not waiting.

What happens when the paired devices disconnect?

Keep scoring on Watch. iPhone shows the last confirmed score and remains read-only. Reconnect and refresh before entering another point. If an operation was not confirmed, retry that same operation; it will not add a second point. Closing iPhone does not end the Watch workout.

When does a match created on Watch end?

Watch creation does not set a fixed match length. After each set, choose Next Set or Save Match; standalone tiebreaks use Next Round. The choice waits for you, and a match can be saved as a draw. iPhone-created matches keep the fixed length and advanced rules chosen on iPhone.

Can I change the format during a Watch match?

For a match created directly on Watch, swipe left from scoring and choose Change Format. Std and Tiebreak keep separate progress for the current game; the first switch starts the other format at 0:0. Apply submits the choice and tiebreak target. Winning settles that one game, and the next game follows the original match format. Only the chosen branch contributes to saved statistics. iPhone-created matches use the format set on iPhone.

Do Watch options change my saved defaults?

No. Home Settings and iPhone Apply to Watch change defaults for future workouts. In-workout Options apply to the current workout. Sound and haptics use Watch settings; iPhone feedback uses its own settings.

Why is workout duration different from match duration?

Workout time includes preparation and breaks between matches. Match time begins when that match starts. Both exclude pauses. Match details do not copy the workout’s entire energy or average heart rate into every match.

Account & Data

Does Saved mean my match is backed up?

No. It means the match is saved on the device. Account backup also needs sign-in and internet; if upload fails, keep the local record and retry when connected.

Can I change my Player ID?

No. New accounts choose 4–20 letters, numbers or underscores after verifying their email. IDs are case-insensitive and cannot be changed or reused after account deletion. Existing accounts keep their current ID. You can still change your display name.