This covers Play and Courts at sound.tennis. It's written to be read, not to be survived — if anything here is unclear, write to us and we'll fix the wording.
What we collect
What you tell us
- Your email address, and your name if you give one.
- The hours you're usually free, by day and time.
- The courts you save, and the court you usually play at with each partner.
- The people you add as hitting partners — their name and email address.
- How many times a week you want to play, and whether partners need your approval before booking you.
What the product records as you use it
- Games: when, where, who with, and whether they were confirmed, moved or cancelled.
- Which court you chose out of the ones we showed you, and roughly how far each was from each of you.
- Searches on Courts — the area, the filters, the time of day.
- When you and a partner were both free and no court could take you.
- Whether you played, when we ask afterwards, and whether you managed to book the court.
- Whether you opened or clicked one of our emails.
Where you are
We store your location by neighbourhood or area, not by address. We do this deliberately: a rough area answers everything we need and is far less sensitive to hold.
Courts can ask your device for your exact location, if you allow it, to sort courts by how close they are. We use it to put the list in order and we don't keep it. Say no and Courts still works — you tell it an area instead.
What we do with it
Running the thing. Matching your free hours to your partners', suggesting courts, sending the emails that make the loop work, and putting games on your calendar.
Understanding where tennis is hard in Seattle. Aggregated across everyone: when people want to play, where, how far they'll travel, and how often they can't find a court. We are building a tennis club, and this is how we decide where it should be and how big. It's the honest reason this product exists and we'd rather say so than bury it.
What we share
Aggregate patterns, including commercially. We may publish or share de-identified, aggregated findings — how many people wanted a court at 6pm on a Tuesday in Ballard, how far people travel for a game, which hours go unmet. This may include sharing with or selling to other parties, such as parks departments, court operators or researchers.
Aggregate means aggregate. It never includes your name, your email, your address, or who you play with, and it's never assembled in a way that would let someone pick you out of it.
With the people you play with. Your partners see your first name and the hours you've opened to them. That's the product working as intended.
When we're legally required to, and never otherwise.
What we don't do
- We don't sell your personal information. Not your email, not your name, not your availability, not your address.
- We don't share who you play with. Your roster is yours. It never leaves in any form that identifies anyone.
- We don't sell your information, and we don't share who you play with or when. On our public pages (not in Play) we use Meta's pixel and Google Analytics to measure how our ads and pages perform. They tell Meta and Google that someone visited a page or joined the list — never your email, your name or anything you typed. If your browser sends a Global Privacy Control signal, we honor it and neither loads.
- We don't sell your email address to anyone, and we don't send mail on anyone else's behalf.
Adding someone as a partner
When you add a hitting partner, you give us their name and email so we can invite them. Add people you actually know and would text about tennis.
Until they accept, we hold their email only to send that invitation and to show you they're pending. If they never accept, they can ask us to remove it — the unsubscribe link in the invitation does it, and so does writing to us.
Two kinds. Transactional mail is the loop itself: someone claimed your hour, a game is confirmed, a game was cancelled, your sign-in link. It's how the product works, so it isn't something you can switch off while still using Play.
Recurring mail is the weekly note about open hours. Every one carries an unsubscribe link, and unsubscribing stops all recurring mail — not just the one you clicked from.
Who else touches your data
We use a small number of services to run this, and each sees only what it needs: Supabase (the database), Netlify (hosting), Loops (sending email), Mapbox (maps), Open-Meteo (weather — it receives an area, never who's asking).
Meta and Google Analytics (ad and page-performance measurement on our marketing pages only, both honor Global Privacy Control). You can turn either off with the link below.
PostHog (product analytics and session replay, so we can see where a page is confusing or broken). Typed values are masked before a session is ever recorded — we see that a field was filled in, not what was typed. We identify you by an internal account id only, never your email or name, and PostHog never loads inside the admin tools. It honors Global Privacy Control and Do Not Track the same way Meta and Google Analytics do, and the opt-out above covers it too.
When you book a court, you leave us and go to that venue's own booking system, such as Seattle Parks. We don't see or handle what happens there, including any payment. Their privacy terms apply once you arrive.
Removing yourself
Write to us and we'll delete you. Not deactivate — delete.
That removes your profile, your hours, your partners and your games, and removes you from our mailing lists. We'll confirm when it's done.
One honest exception. We keep a permanent, append-only record of events — a game was confirmed at this court at this hour, a search happened in this area. When you delete yourself, your identity is severed from those rows and cannot be reconnected, but the anonymous rows themselves remain, because the aggregate picture they form is the point of keeping them. After deletion, nothing in that record can be traced back to you.
You can also ask us what we hold about you, and we'll send it.
A few other things
Adults only. Play is for people 18 and over. If you believe someone under 18 has an account, tell us and we'll remove it.
Security. Data is encrypted in transit and at rest. Sign-in is by emailed link — there's no password to steal. No system is perfect and we won't pretend otherwise.
Where it lives. Our infrastructure is in the United States.
Changes. If we change how any of this works — particularly what we share — we'll update this page and say so by email before it takes effect.
Contact
hello@sound.tennis — for deletion, for a copy of your data, or because something here doesn't make sense.
The Sound · Seattle
Read and answered by hand