Privacy

Only what the product needs to work.

• ·Your email address, and the display name and avatar your sign-in provider gives us. We use these to identify your account and nothing else.
• ·The games you import, as a normalised move list. We keep them so a story can be rewritten without you pasting the game again.
• ·The analysis of each game: the engine evaluations and the events we derived from them.
• ·The stories we generate, the universes you build, and the characters in them.
• ·A record of each story generation, so daily limits can be counted.

The chess engine runs on your device. Stockfish is downloaded to your browser and every position is evaluated there, so no game is analysed on a server. That is a cost decision as much as a privacy one, and it means an imported game you never turn into a story is never uploaded at all.

• ·Supabase hosts the database and handles sign-in. Your account and everything attached to it lives there.
• ·Vercel hosts the site and runs the code that answers your requests.
• ·A language model provider writes the stories. It receives the events our analyser derived, the names of the characters in your universe, and any brief you wrote. It does not receive your game, your email, or your account.

We do not sell your data, and there is no advertising or third-party analytics on this site.

We count how many people open each page, so we can tell whether anyone is finding the site. What that count stores is deliberately small:

• ·The page path, and the site you arrived from — the domain only, never the full address you came from.
• ·A number standing in for you, made by hashing your IP address and browser together with the date. It is not stored alongside your IP address, and it cannot be turned back into one.
• ·That number is built from the date, so it changes every day. You cannot be followed from one day to the next, and none of it is linked to your account.

No cookie is involved and nothing is shared with anyone. Vercel, who host the site, keep their own aggregate count of visits for us in the same spirit.

A story is private when it is created. You choose whether to change that, per story:

• ·Private: only you can open it.
• ·Unlisted: anyone with the link can read it, and search engines are asked not to index it.
• ·Public: anyone can read it, and it may be indexed.

A shared story shows the story, the player names on the game, the result, the opening and the move count. It never exposes a game you have not shared, and the move list behind an unshared game is not reachable by anyone but you.

One cookie, holding your sign-in session. It is what keeps you signed in between visits. There are no tracking or advertising cookies.

A story is private when it is written. Private means a link to it answers as if the page does not exist, to everybody but you. Unlisted means only somebody you gave the link to can open it, and it is never listed anywhere. Public means it appears on the Published page, where anyone can find it, along with how many people have read it.

Every story has a Delete control on its own page, which removes the story and its sharing link at once.

Your account has one too, at the foot of the account page. It removes the account, every game you imported, every story written from them, every universe you built and the record of what you have used. It happens immediately, we keep no copy, and nothing about it can be undone. You do not have to write to anybody and we do not ask why.

A subscription is the one exception, because it lives with the payment provider rather than with us. Cancel it first, or you would keep being charged with nothing left here to stop it from.

Aftermate is not intended for children under 13, and we do not knowingly create accounts for them.

If this policy changes in a way that affects what we do with your data, we will say so here and update the date at the top. Questions go to hello@aftermate.app, and are answered by the person who wrote the site.

Aftermate is run by Hanbyul Kang, one person in the Republic of Korea, rather than by a company. That is who decides what happens to your data and who is answerable for it.