Trust

TierBreak Privacy Policy

Last updated: 2026-10-03

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

An adult sets up the family account. Nobody under 13 can sign themselves up: the sign-up asks for a date of birth before it collects anything else, and an under-13 answer stops there.

A player aged 13 or over can be invited to their own sign-in, and accepts that invitation themselves.

A player under 13 is not invited. Their guardian creates the sign-in directly, from the player's profile, while signed in to their own account, and only after reading what it means and agreeing. Being signed in as the guardian is how we know the agreement is really theirs. We record it. The sign-in is created on an address at a domain we own and never deliver mail to, so there is no inbox a child could use to reset their own password: recovery always goes through the guardian, who can set a new password at any time. The guardian can withdraw the agreement whenever they like, which turns the player's sign-in off. A child is never asked their own age by us: we use the date of birth their guardian recorded, so a child is never in the position of having an account taken away for answering honestly.

Whoever is signed in, the guardian remains in control of a player under 13 and can read, correct, export and delete everything about them.

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, an optional home ZIP code (five digits, used to show how far each tournament is from home and to pick the USTA section whose lists we read; we keep the ZIP, never a street, and we do not ask for a state), optional profile photo, and any rating IDs you choose to save. If you save your player's USTA ID, we use it to find your player on public tournament entry lists and, on Advanced and Elite, to read your player's public USTA profile, as described under Public USTA tournament data.
• Ratings: rating values your family types in (for example a World Tennis Number or UTR, singles or doubles) and, if you saved your player's USTA ID and are on Advanced or Elite, the WTN and USTA standing we read from your player's public USTA profile. Both are kept in your player's rating history, each value stored with where it came from, and a number you type is never overwritten by a number we read. If official rating data later becomes available through an official channel you consent to, it is stored alongside.
• Activity you log: training sessions, match scores and point-by-point data, mental-game and wellness notes, goals, and tournament scouting notes.
• Dictation: dictation is your device's own feature, under your own device settings. TierBreak never receives audio, only the text you choose to save, and that text is treated exactly as if you had typed it.
• Crash and diagnostic data: if the app crashes, our own first-party reporter (no third-party crash SDK) records the error, the app version and the device's OS version so we can fix it. No advertising identifier, no location, no journal content.

We do not collect precise geolocation, your device contacts, advertising identifiers, or biometric data, and the app contains no third-party advertising or analytics SDKs. This website (not the app) uses Cloudflare Web Analytics to count page views: it sets no cookie, builds no fingerprint, and records no identifier, so it cannot tell one visitor from another or connect a visit to a family.

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.

Public USTA tournament data

The tournament planner reads USTA's public tournament pages: the calendar, entry lists and player profiles that anyone can open in a browser without an account. It never signs in to USTA, never asks for or uses a USTA password, and never reads draws or match results. The calendar and the entry lists are read by our server; a player profile is opened only by a computer TierBreak operates, in a browser with no account. Here is what it reads, what it keeps, and which plan uses it.

• The tournament calendar. Each junior tournament's name, level, dates, venue, entry fee, deadlines, draw size and how players are selected. These are facts about events, not about people. Searching them is free.
• Entry lists. From each list we take each entered player's USTA ID and their place on it (entered, selected, alternate or withdrawn). We use them to count the field and to find your own player. We keep the count, and one fingerprint of the whole list (a SHA-256 hash) so we can tell when the list changes; the fingerprint cannot be turned back into the list and cannot show whether any one player is on it. We do not keep any other player's name, USTA ID, city or anything else that identifies them. How many have entered is shown free on every plan. The count of entrants per event, recorded each night with the event's level, section, age group and draw size, is kept for three years so the season plan can estimate how full an event will be; no person is in that record.
• The field's numbers. For singles events in the sections and age groups our families play, from three weeks before entries close until the event starts, we open the public USTA profile of each player in the field and keep three numbers for each: ranking points, WTN rating, and how confident WTN is in that rating. They are stored against the event as a list of bare numbers, with no name, no ID and nothing that ties a number to a child, and the list itself is deleted 30 days after the event ends, and a summary of the field (its size, rating range, average and middle, with no person in it) is kept three years so the season plan can read how fields of that kind close. Advanced uses them to show how many of the field are rated. Elite uses them to show the field's rating range, average and middle, where your player stands, the likely seed and the forecast. The app shows a field only as counts and summary figures; no family is shown a list of the field's players or their numbers.
• Your own player, if you save their USTA ID. On every plan, we record your player's status on each entry list we read, so the tournaments they are entered in reach your calendar. On Advanced and Elite, the next time our reader runs after you save the ID, usually within an hour and then each night, we also read your player's public USTA profile: WTN singles and doubles with the confidence and game-zone labels shown beside them, and their points and ranks on each national standings list. These go into your player's rating history, and a number you typed is never overwritten by one we read. Advanced also shows the list status and tells you when it changes. For each tournament you save, we also record each night how many are entered and where your player stands in that field (shown on Elite), so the season plan can show what changed; that record is your player's alone and is deleted with the plan or the account.
• Your opponents, if you add their USTA ID (Elite). You can add an opponent's USTA ID to your own opponent record, typed or pasted from their USTA profile, and the app asks you to confirm before linking it. We never look an opponent up by name. On Elite, only after you confirm the ID, and if your player has played that opponent in the last year or you saved a scouting report on them, we read the WTN rating and confidence on their public profile about once a week, record it again when they are in the field of an event you saved, and note when they appear on the entry list of an event you saved. A profile that does not show a WTN gives us nothing. These records are kept on your opponent record only, are never joined with another family's record of the same player, are never shown to a coach, and are deleted with your record or your account. On Free and Advanced, the ID stays on your record and nothing is read for it.
• The same applies the other way. A family your child has played can add your child's USTA ID to their own opponent record, and on Elite we read your child's public WTN for that family alone. If your child's USTA profile does not show a WTN, nothing is recorded.

When we open a public profile, USTA receives that profile's USTA ID, the same request your browser makes when you open the page, and nothing about your family. An opponent's rating is never sent to our AI processor. Nothing we read is sold or shared. Today the one public source we read is USTA; if we add another, we will say so here, with the date.

Email you ask for on our website

The email box on our website does one of three things, and the box says which: it signed you up for a single launch email (before TierBreak was on the App Store), it counts you as a vote for an Android version, or it subscribes you to the weekly guide for tennis parents, one email a week. We use the address only for the thing you asked for. This is a form for adults; we do not ask for any information about a child. We store only your email address, what you asked for, and when; we do not sell or share it, and every message includes a one-click unsubscribe. You can also unsubscribe anytime by emailing privacy@tierbreak.app. If you have a TierBreak account, we may send the weekly guide for tennis parents to the address you signed in with, unless you have told us not to in the app. Every email carries a one-click unsubscribe, and we stop the moment you use it. An address a relay hides from us is never written to.

Children's privacy (COPPA)

A child under 13 can use TierBreak, with their guardian's agreement, and that agreement is what permits everything that follows. We comply with the Children's Online Privacy Protection Act (COPPA):

• A child cannot sign themselves up. Our sign-up asks for a date of birth before it collects anything else, and an under-13 answer stops there. The only way a child under 13 gets a sign-in is by invitation from their guardian's account.
• Consent before the account exists. Before we create a sign-in for a child under 13, their guardian is shown what we collect, what their child will be able to do, and what their child will not be able to do, and they have to agree. We record that agreement. Nothing about that child is collected through their own sign-in until it exists.
• Withdrawal turns the sign-in off. A guardian can withdraw that agreement at any time, in Settings. It is not a preference we note down: the child's sign-in stops working the moment it is withdrawn. Their record stays with the family, visible to the guardian, until the guardian deletes it.
• No AI for a child under 13. None of the AI features run for them, and a guardian cannot switch them on. Nothing a child under 13 writes is sent to Anthropic or any other company.
• A child's journal is not private from their guardian. The guardian can read everything their child writes, and the child is told that when they write it rather than discovering it later. This is the one place we deliberately give a young athlete less privacy than an older one, because a guardian's right to see their child's record is not ours to sign away.
• 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. Rating information flows into the app, never out: the numbers you type, the numbers on your child's public USTA profile if you saved their USTA ID (Advanced and Elite), and official data later through an official channel you consent to. We never push your child's information out.
• Consent is recorded twice, for two different things. Once when a guardian creates a player profile for a child under 13, and again, separately, if that child is later invited to their own sign-in. They are different decisions and we do not treat the first as permission for the second.
• Parental rights. A parent/guardian can review, correct, export or delete their child's information in the app, withdraw either consent directly in Settings without having to delete anything, 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. They can also create and manage player profiles. This is by design: families track development together.
• A player with their own login sees only their own information, never another player's in the family. That is true at every age.
• 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).
• A connected coach sees a subset of what the family sees. If your family invites a coach, you choose which areas they can view (training, matches & results, shot & point analytics, mental progress, schedule, goals), and you can revoke access at any time. A coach can never see a written reflection unless the athlete chose to share that entry with the coach specifically. Every coach view is logged and visible to the family, and there is no private channel between a coach and a child: anything a coach can see, the managing guardian can see too.

Sharing a match with the opponent's family

A parent or guardian can choose to share one tracked match with another family in that match, so both kids get the record of a match they both played. This is always a deliberate act by the sending guardian: nothing is shared automatically, publicly, or with anyone but that one family, and the link is an authenticated, single-use invitation; there is no public page.

There are two cases, and they are not the same. In singles, a guardian may share with the opposing player's family. In doubles, a guardian may share with their child's partner's family only. The opposing pair's families are not offered, because a doubles match contains two other households' children and one family's decision cannot speak for them.

For a doubles partner, the sender chooses how much detail travels, and is shown both options before sending. The default sends every point with the detail that describes the partner's own child. The sender may instead choose to send everything their family tracked from that side of the court, including their own child's shot detail and serve placement. The choice is recorded with the share, and both families are shown which one was made.

What travels is the score, the facts both benches could see, and the details that describe the recipient's own athlete. In singles the match is retold from the recipient's side, with the score inverted to their point of view. In doubles nothing is inverted, because both children played the same points from the same side of the net; only the two names on that side change places, so the recipient's own child reads first in their record. The opposing pair's shot detail and court positions never travel in either case.

The sending athlete's own tracking detail stays home unless the sender deliberately chooses to include it for a doubles partner as described above. Every note, reflection, and AI-written recap stay home in every case. The sender previews exactly what will be shared before sending, the athlete can see every share made of their matches, and a received copy can never be shared onward.

Notifications and the home-screen widget

All TierBreak reminders (daily reminder, streak nudges, event reminders, the weekly recap) are local notifications scheduled on your device. We operate no push-notification servers and no data about your athlete leaves the phone to produce a notification. Notifications are optional: decline iOS permission and the app stays quiet. The Win the Day home-screen widget works the same way: the app shares its small summary (ring progress, streak) with the widget entirely on-device through Apple's app-group storage; nothing is transmitted.

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.

How long we keep things

You can delete at any time, and that overrides everything below. Deleting a player profile removes that player's data; deleting your account (Settings, then Delete account) removes your family's records, meaning profiles, sessions, matches, journals and goals, along with your sign-in record. It happens immediately rather than being queued, and it is not recoverable.

If you never ask us to, these limits apply on their own:

• While you are using TierBreak, we keep your record. That is the point of it. A season only means something next to the ones before it.
• Twenty-four months after the last sign-in, the account and everything in it is deleted. You do not have to do anything, and we do not hold a dormant family's data indefinitely on the chance they come back.
• Written reflections older than twenty-four months are erased on a rolling basis. The day itself stays, so streaks, totals and the numbers an athlete tracked are not rewritten years later, but the words are gone. The private things a twelve-year-old wrote should not still be sitting on a server when they are fifteen.
• Age-screen answers are discarded once the check is done. We never store a date of birth from that screen, only whether the answer was 13 or older, and that record is removed when the account is.
• A tournament field's numbers are deleted 30 days after the event ends. They never had a name or ID attached. A summary of the field, counts and figures with no person in it, is kept three years.
• Error and usage records keep no sign-in once an account is deleted, and are deleted after 90 days.
• The count of entrants per event is kept three years. It is a fact about an event, with no person in it, and it is what tells the season plan how full an event is likely to be.

Two anonymous operational records remain after a deletion, and neither contains a name, an email address, or anything about a child: a churn record (the date, and counts of how many players, sessions and matches the family had) and an audit receipt proving the deletion took place. We keep them to understand why families leave and to be able to show that deletions actually happen.

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.
• Cloudflare: serves this website and fronts our API, and provides the cookieless page-view counts described above. It is not used for bot challenges that run scripts in your browser.
• USTA's public tournament pages: read without signing in, as described under Public USTA tournament data. USTA receives only the ID of a profile we open, never anything about your family. USTA is the one public source we read today.
• Official rating providers (e.g. USTA): only if and when you connect an official, consented channel. Official records are stored alongside the rest of your player's rating history.
• Apple / Google: only if you choose Sign in with Apple or Google.
• AI processor (Anthropic): powers match recaps, opponent scouting summaries, the parent-only post-match car-ride brief, the grounded opponent-prep chat, the college pathway brief, the optional “Clean up with AI” handwriting transcription, and, only when the family turns it on, athlete by athlete, the athlete-only “Your patterns” journal reading, which sends the athlete's own reflection text and returns its result to the athlete alone. The prep chat also sends what you type into it. Every AI feature requires a recorded AI consent FOR THAT ATHLETE: the choice is made per player, not once for the household, so agreeing for one child is never agreement for another. For a player under 13 only a parent or guardian can give it, and a guardian can withdraw it at any time. Content is sent only to produce the result you asked for. Anthropic does not use it to train models, sell it, or use it for advertising. TierBreak never stores the scanned handwriting photo.

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: support@tierbreak.app