Find out which spoilers you and a friend both already know — without risking telling each other something new.
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How it works
1 Create a session — you'll get a private link to send your friend.
2 You both privately list the spoilers you already know.
3 An AI compares the two lists and shows each of you only the spoilers you both already know.
4 Anything only one of you knows is never revealed to the other.
Both lists are sent to an AI (Anthropic Claude) to compare. Don't enter anything you wouldn't want processed by an AI service. AI matching isn't perfect — treat results with care.
Send this link to your friend
They open it, list their spoilers, and you'll both see the overlap. Keep this tab open.
Your spoilers
Your friend will never see what you wrote — only the items you both independently listed are surfaced, each shown in your own words.
Waiting for your friend…
You're all set. As soon as your friend submits their spoilers, you'll both see what you have in common.
Friend's link
Spoilers you BOTH know
Updated — your friend just changed their spoilers.
Only discuss the spoilers listed above. Everything else stays secret. Matching is AI-based — if any item here looks wrong, stay cautious and don't discuss it.