Privacy
What is stored about you, who else ever sees it, and how to take it back.
Last updated 18 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.
- Free and signed-out visitors may load Google advertising and its consent manager. Pro subscribers do not load that advertising path.
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
We use cookies to keep you signed in and protect the sign-in process. Google advertising and its consent manager may also use cookies or other browser storage for free and signed-out visitors, as described below. We do not use session recording.
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. This measurement is separate from Google advertising.
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 an advertising position 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
Google AdSense is enabled for free and signed-out visitors. When an advertising position becomes visible, your browser may contact Google and its advertising partners. They may receive your IP address, device and browser information, information about the page and advertising interactions, and your consent choices. This can happen even when Google returns no advert, including while its site review is pending.
Google and other third-party vendors may use cookies to serve adverts based on your previous visits to this site or other websites. Google’s advertising cookies let Google and its partners personalise adverts using those visits, subject to your choices and applicable requirements. Advertising cookies or other storage may also support measurement, fraud prevention and remembering your choices.
- Pro subscribers do not load our advertising scripts or units. Your subscription is checked before any advertising request is made.
- In the UK, the EEA and Switzerland, Google’s certified consent manager handles your choices. The published message offers accept, reject and manage options. Google uses your choices to determine whether personalised, non-personalised or limited advertising is permitted. The site itself works whichever you choose.
- 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.
To revisit your consent, use Google’s “Privacy and cookie settings” link when it is displayed on a page with advertising. Where Google displays a “Do Not Sell or Share My Personal Information” link, you can use it to make that choice. These controls depend on your location and the Google message available for that page.
You can also manage Google’s personalised advertising in My Ad Center and opt out of participating vendors’ personalised advertising through YourAdChoices. Read how Google uses information from sites that use its services and Google’s Privacy Policy. The consent message, where available, identifies the advertising partners and their policies. Turning off personalised advertising does not necessarily remove adverts or all advertising storage.
A panel promoting BanterBoost itself is our own writing linking to our own page and sets no advertising cookie of its own. If it replaces an unfilled Google position, the earlier Google request may still have taken place.
Who else receives anything
- Google, if you sign in, because that is what signing in with Google means; and Google and its advertising partners, when an advertising position loads for a free or signed-out visitor, as described above. Pro subscribers do not load that advertising path.
- 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 at support@fplbanterboost.com.
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.
