Privacy

What a host gives us

The name of the person the game is about, the questions and answers you write, any photos you add, the guest names you list, and — if you sign in — your email address. We use these to run your Guessbook and show it to the people you share the link with.

What a guest gives us

A first name (or the name you tap on the guest list) and your answers. Guests don't create accounts and we never ask guests for a phone number or password. Your name and score appear on the leaderboard for everyone playing that Guessbook. Two things are optional and only happen if you tap them: turning on reminders stores a push subscription for this phone (a browser token, not your number or email), and claiming a $5 referral credit means signing in with an email so the credit has somewhere to live.

If the host is collecting wishes, anything you write in that box is stored with the name you played under and shown to everyone in that Guessbook once the wishes open — including the guest of honor, by email if the host gave us their address. Until then nobody reads it, the host included; they only see how many wishes there are and who wrote one. You can change yours right up to the moment they open, and the host can hide any wish afterwards.

Contacts and pasted text

If you add guests from your phone's contacts, the picker runs on your phone and only the people you choose are sent to us: their name and, if you keep them on the row, one email address and one phone number. We use a guest's email for one thing — sending the invitation and the results for that game, from Guessbook, when you ask us to — and we never use their phone number at all (“Text them” opens your own Messages app). Guests never see each other's contacts, and every contact is deleted with the game. If you use “paste from a chat or email” to pull names out of a block of text, that text is sent to our AI provider once to find the names and is not stored by us afterwards; a list with emails or phones on it is read on your device.

Suggestions written by AI

When you tap “Suggest some” for wrong answers or question ideas, the question text and the guest of honor's first name are sent to an AI model (run for us by DigitalOcean or Anthropic) to write the suggestions. The real answers you type are never sent to it, and none of your content is used to train anything.

Wishes, and reporting something

If a host turns on the guest book, the note you write is signed with the name you played under and shown to everyone in that Guessbook when it opens — on the wishes page, in the emails that go out that day, and on the printed keepsake. Nobody reads it before then, the host included. You can change it right up until it opens.

If you report something, we keep what you sent us, a copy of the words you reported and the name you were playing under, so we can look into it and see if the same person turns up again. Reports go to a person at Guessbook, not to the host, and never to whoever wrote the thing you reported. Blocking someone is yours alone: they are not told, and the host isn't either.

Payments

Every purchase — Game Night, the Party Pass, and the Club and Planner subscriptions — is paid through Stripe. Stripe handles your card; we never see the number. We keep a record of the purchase (which Guessbook, the amount, and the email Stripe gives us) for receipts and refunds.

Email

Hosts who sign in or pay may get a small number of emails from us: your receipt, a results note the morning after your reveal, and at most a couple of nudges a year (a comeback note, a suggestion for the next occasion). Every one has an unsubscribe link, and we send no more than four in any thirty days. Guests are never emailed — we don't have their addresses. Email is delivered for us by Resend.

Cookies

A sign-in cookie keeps you signed in as a host. If you arrive through a friend's referral link, a cookie remembers that for thirty days so their $5 off applies at checkout. Guests' game progress is kept in the browser's own storage on their phone. That's all — no advertising or tracking cookies.

What we don't do

• We don't sell or share your information, your guests' names, or your photos with anyone.
• We don't run advertising and we don't use ad trackers.
• We don't use your questions, answers or photos to train anything.
• We don't email your guests. We can't — we don't have their addresses.

Where it lives and how long

Your data is stored with Supabase (database) and Vercel (hosting) in the United States; Stripe, Resend and our AI provider each receive only what's described above. A Guessbook stays available until you delete it from your dashboard, which removes its questions, photos, guests and answers immediately. A Guessbook that isn't on an account or a plan and that nobody has ever joined is cleared out after 60 days.

Analytics and errors

We count page views and a handful of product events (a Guessbook was built, published, played, unlocked) with Vercel Analytics, without cookies and without identifying you. If something breaks, an error report may include the page you were on so we can fix it. To keep bots from flooding the service, each Guessbook is stamped with a scrambled (hashed) form of the address it was made from — not the address itself — used only to count how many were made from one place in an hour.

Children

Hosts must be 13 or older — anyone under 13 can play as a guest but can't make a Guessbook or sign in. If you're under 18 and hosting (a team captain, say), make sure a parent or guardian is okay with it. A host may share a game with guests of any age — a class party or a youth team, for instance. From a guest we collect only a first name and their answers, and for the team edition the few things a teammate chooses to say about themselves; we never ask a guest for an email, phone number or account, and we don't knowingly collect anything else from anyone under 13. If you're a parent, teacher or coach and want a child's name or answers removed, email us with the join code and we'll do it right away.

Ask us anything

Want a copy of what we hold, or want it gone? Email hello@guessbook.app from the address you signed in with and we'll do it within a few days.