Privacy Policy

Last updated: October 2026

Draft for legal review. This policy describes how the Ballmark app works today. It will be reviewed by a lawyer before Ballmark launches.

Ballmark is a tennis app for ratings, leagues and match days. This policy explains what information Ballmark collects, why, who it's shared with, how long it's kept and the choices you have. Ballmark follows Canada's privacy law, the Personal Information Protection and Electronic Documents Act (PIPEDA).

Ballmark is made by Peter Nguyen (Lockwork Labs), Thorold, Ontario. For any privacy question or request, email hello@ballmark.ca.

The short version

What we collect

When you create an account

When you use Ballmark

What we don't collect

Like any online service, our providers keep short-term technical logs (such as IP addresses and times of requests) to keep the service secure and working.

How we use it

We don't use your information for advertising, and we never sell it.

Who can see what

InformationWho can see it
Name, home area, level, match results, league standings and titlesOther signed-in Ballmark players. Profiles aren't public on the web.
Date of birth, email address, gender, your level answers and goalsOnly you
Your league entries and In / Out answersThe league's organizer and, where relevant, its other players. Organizers don't see your email.
Dispute notes and photosThe players in that match, the league organizer (for league matches) and the Ballmark team

Junior players (13 to 17)

You must be at least 13 to use Ballmark. Players aged 13 to 17 have a limited junior account:

Service providers and where your information is stored

We use a small number of providers to run Ballmark. They handle information only to provide their service to us.

ProviderWhat it doesWhere
SupabaseDatabase, sign-in and file storage (including dispute photos). Your account and everything in the app are stored here.Canada (Central region)
ResendSends Ballmark's emails, such as sign-in codes and account notices.United States
ExpoPasses push notifications from Ballmark to Apple and Google.United States
Google Firebase Cloud MessagingDelivers push notifications to Android phones.Google's servers, which may be outside Canada
CloudflareHosts this website. It sets no cookies.Global

When providers outside Canada handle information, it may be subject to the laws of those countries. A push notification contains the text of the notice (for example, that a score was confirmed or a match day is coming up) and an identifier for the notice.

Tennis court information comes from OpenStreetMap and place names from Statistics Canada and Natural Resources Canada open data. Both lists are built into the app, so using them sends nothing about you to anyone.

How long we keep it

Deleting your account

You can delete your account in the app: Profile › Settings › Delete account, then type DELETE. See Delete your account for the steps, and for how to ask by email if you no longer have the app.

What's deleted

What's kept, without your name

If you run a league that still has players in it, you'll be asked to hand it over to another player or end it before deleting your account.

Your rights

You can ask to see the personal information we hold about you, ask us to correct it, or withdraw your consent (which may mean closing your account). Email hello@ballmark.ca; we'll reply within 30 days. If you're not satisfied, you can contact the Office of the Privacy Commissioner of Canada.

Security

Information is sent over encrypted connections, and the database only lets each player read what they're allowed to see. No system is perfectly secure, but we work to protect your information and will tell you and the authorities about any breach as the law requires.

Changes to this policy

If we change this policy, we'll update the date at the top and, for important changes, tell you in the app.

Contact

Peter Nguyen (Lockwork Labs), Thorold, Ontario. hello@ballmark.ca