Privacy
What is stored about you, who else ever sees it, and how to take it back.
Last updated 1 September 2026
BanterBoost is run by Adi Rosenstock, an individual based in Costa Rica, who is the data controller for everything described here.
The short version
- You can read a league, share it and be mocked by it without an account.
- Signing in stores your Google name, email and avatar, and the FPL team id you type in. Nothing else about you.
- There is no password, because there is no password field anywhere in this product and never will be.
- Your questions to the assistant are not stored, and nobody trains a model on them. A chat lives in your browser tab and is gone when you close it.
- You can export everything, or delete all of it, from your account page.
What is stored about you
Only if you sign in:
- Your Google identity: name, email address, avatar image, and the connection to your Google account that makes signing in work.
- Which FPL manager you are: the team id you type in, and your team name. This is the one thing that makes an account worth having, because it is how your leagues are found without you looking anything up again.
- The leagues you have opened, so they are listed for you next time.
- Your subscription, if you have one: the identifiers Stripe gives us, its status, and when the paid period ends.
- How many assistant turns you have used this month, and a record of each call: which feature, which model, roughly how much was asked and answered, what it cost, whether it worked. Never a word of what you asked or what came back.
Not stored, at all: passwords, card numbers (Stripe holds those and this product never sees one), postal addresses, phone numbers, dates of birth.
Football data, and other people’s names
League standings, squads, transfers and results come from Fantasy Premier League’s own public numbers. That includes the real names FPL publishes for managers in a league.
Who sees those names is decided when a page is drawn, not when the data is stored. An anonymous visitor holding a league link sees team names only. A signed-in visitor also sees real manager names. There is no setting that reveals a whole league to everyone.
There is also a directory of FPL managers, built from the public Overall league, which is what lets you find your team by typing its name. It holds a team name, a manager name, an entry id and an overall rank, all of it already published by FPL. It holds nothing about anyone’s squad or history.
Cookies and what runs in your browser
A single cookie, to keep you signed in. That is all. No advertising, no tracking pixels, no session recording, and nothing that follows you to another site.
Page views and loading speed are measured by our hosting provider in a way that sets no cookie and stores no identifier in your browser, so there is nothing here to consent to and nothing to opt out of.
A handful of actions are counted the same way, so we can tell which parts of the site people actually use: which panel of a league page was opened, whether you found your team by name or by number, that a question was put to the assistant and in which tone, that a link was shared, and that a promotion panel appeared. Those are counts and nothing else. What you typed, which league you were looking at, and who you are are never part of them.
Adverts
No third-party adverts are shown at the moment. Where you see a panel promoting BanterBoost itself, that is our own writing linking to our own page: nobody else is involved and nothing is stored in your browser for it.
If third-party adverts are introduced, three things will be true from the first day, and they are built that way already rather than promised for later:
- Subscribers will never load one. Not hidden, not requested. If you pay, your browser does not talk to an ad network at all.
- In the UK, the EEA and Switzerland you will be asked first, and nothing will load until you answer. Declining takes exactly one click, the same as agreeing, and the site works identically either way.
- Where you are is worked out from your connection, by our host, for that decision alone. You are never asked to declare a country, and that answer is not stored.
This section will be rewritten before any advert appears, not after. If it still says no adverts are shown and you are seeing one, that is a bug worth reporting.
Who else receives anything
- Google, if you sign in, because that is what signing in with Google means.
- Stripe, if you subscribe: your email, and whatever you type into their checkout.
- Anthropic, who run the model, when you ask the assistant something: your question and the league facts needed to answer it. They do not use either to train their models.
- The Premier League and Google Fonts, whose player photographs and typefaces your browser requests directly.
- Whoever hosts this product and stores its records, which by definition holds everything.
Getting it back, or getting rid of it
Download everything stored about you as a file, at any time while you are signed in. Closing the account is on your account page, and removes it. Closing is refused while a subscription is running, because leaving a payment against an account nobody can sign in to would be worse than saying no. Cancel first, then close.
Unlinking your team is separate and gentler: it forgets which FPL manager you are and keeps your saved leagues.
How long things are kept
Old seasons of league data are deleted; this season and last are kept. Saved roasts last a season. Monthly assistant counts are kept for thirteen months and the cost records for two years. Expired sign-ins are cleared.
Your account data has no timer, because it is yours until you delete it. Billing records are kept as long as tax and accounting rules require.
Your rights
You can ask for a copy of your data, ask for it to be corrected or deleted, or object to what is done with it. Export and deletion are buttons rather than requests, so you do not have to ask anybody. For anything else, or if you think something here is wrong, get in touch with LinkedIn.
Age
BanterBoost is for people aged 16 and over. If you are younger than that, please do not create an account. If you believe a younger person has, tell us and it will be removed.
Changes
The date at the top is when this last changed. Material changes will be obvious on the page rather than quietly slipped in.
