Trust

TierBreak Privacy Policy

Last updated: 2026-06-14

TierBreak ("TierBreak", "we", "us") provides a tennis training and competition tracking app for junior players and their families. This policy explains what we collect, how we use it, and the choices and rights you have — with specific attention to the privacy of children under 13.

Who holds the account

TierBreak accounts are held by adults and players aged 13 or older. Children under 13 cannot create an account or sign in. A child under 13 participates only as a player profile created and managed by their parent or guardian, who is the account holder and controls all information about that child.

What we collect

We collect only what's needed to provide the app:

• Account data: email address and authentication credentials (handled by our auth provider, Supabase). If you sign in with Apple or Google, we receive the identifier they provide; we do not receive your Apple/Google password.
• Player profiles you create: name, date of birth or birth year, gender, home state, optional profile photo, and any public rating IDs you choose to link (USTA, and—when available—World Tennis Number/ITF).
• Activity you log: training sessions, match scores and point-by-point data, mental-game and wellness notes, goals, and tournament scouting notes.

We do not collect precise geolocation, your device contacts, advertising identifiers, or biometric data, and we use no third-party advertising or analytics SDKs.

How we use it

To operate the app: to show charts and trends, compute ratings projections, generate recaps, and provide the features you use. We do not use your data for advertising, and we do not sell or rent personal information.

Children's privacy (COPPA)

TierBreak is designed so that information about a child under 13 is provided and controlled by that child's parent or guardian, not collected from the child directly. We comply with the Children's Online Privacy Protection Act (COPPA):

• No child accounts. Our sign-up enforces a minimum age of 13, on both the app and our servers.
• Parent as controller. The parent/guardian account holder decides what to enter about their child, can review and edit it at any time, and can delete it.
• Data minimization. We store only tennis-development information about a child — never more than needed to provide the app.
• No advertising or third-party sharing. We do not target ads to children, do not sell children's information, and do not disclose it to third parties for their own use. Any official rating information (such as USTA or WTN) flows into the app through official channels you connect, with your consent; we never push your child's information out.
• Verifiable parental consent at profile creation. When a guardian creates a player profile for a child under 13, the app records the guardian's affirmative consent to this policy.
• Parental rights. A parent/guardian can review, correct, or delete their child's information in the app, withdraw consent by deleting the player profile or the account, and contact us with any request at the address below.

If you believe we have inadvertently collected personal information directly from a child under 13, contact privacy@tierbreak.app and we will delete it.

Who can see what within a family

A TierBreak family can include more than one person with their own login — typically a parent or guardian who manages the account and, optionally, a player aged 13 or older who has their own athlete login.

• Parents and guardians who manage the account can see the development data for the players in their family — training, matches, progress, ratings, wellness, and mental-training metrics — and can create and manage player profiles. This is by design: families track development together.
• A player (13+) with their own login sees only their own information, never another player's in the family.
• A 13+ player's written reflections are private to them. The free text a young athlete writes in journaling and post-match reflections is private to that athlete by default and is not shown to their parent or guardian. The athlete can choose to share individual entries with their family. Structured progress (scores, trends, and the metrics that show whether the training is working) remains visible to the managing parent or guardian.
• A safety check-in. If something an athlete writes suggests they may be struggling, TierBreak may prompt their parent or guardian to check in — without showing the parent what was written. This is a prompt to start a conversation, not a clinical assessment, and it is not a substitute for professional help. If you or someone you know may be in crisis, contact local emergency services or a crisis line such as 988 (US Suicide & Crisis Lifeline).

Storage, security, and retention

Data is stored in Supabase (PostgreSQL). Every request is authenticated with a verified JSON Web Token (fail-closed), and our application scopes every record to your family, so no other family can read or write your data; database Row-Level Security adds a further layer of isolation on core records. Connections use TLS.

We retain your data until you delete it. Deleting a player profile removes that player's data; deleting your account removes your family's records and your authentication record. Deletion is processed promptly and is not recoverable.

Data breach notification

If we discover a breach that compromises your personal information, we will notify affected users without undue delay and in accordance with applicable law — typically by email to the account address — describing what happened, the data involved, and the steps we are taking. We will also notify regulators where required.

Third-party services

• Supabase — authentication and database hosting.
• Public rating sources (USTA, WTN/ITF) — we may make requests on your behalf to refresh ratings for profiles you have linked.
• Apple / Google — only if you choose Sign in with Apple or Google.
• AI processor (Anthropic) — powers match recaps, opponent scouting summaries, and the optional “Clean up with AI” handwriting transcription. Content is sent only to produce the result you asked for and is not used to train models; the scanned handwriting photo is never stored.

Your choices and rights

You can access and edit your data in the app, export it on request, and delete individual player profiles or your entire account at any time (Settings → Delete account). To make a privacy request, email privacy@tierbreak.app.

Changes

If we make a meaningful change to this policy, we'll update the date above and surface a notice in the app on next launch.

Contact

Privacy requests: privacy@tierbreak.app
General support: help@tierbreak.app