Sline

Privacy

Last updated: 1 September 2026

This describes exactly what the app does with your information. It is written to be read, not to be survived.

What we collect

  • Account: your email address and a hashed password. We never store your password itself.
  • Profile: your name, date of birth, gender, who you want to be matched with, city, bio, an optional photo URL, and your interest tags.
  • Quiz answers: your answers to the resonance questions. These are the core of matching.
  • Activity: when you last used the app, your match decisions, and the messages you send within a connected match.

What your matches see

Your name, age, gender, city, bio, photos and interests. Nothing else. Your email address is never shown to another user, and neither are your individual quiz answers.

Two things derived from those answers are shown to a match: the compatibility score, and a single sentence describing the dimension you two differ on most — for example that you would go exclusive early while they would keep their options open. That is a characterisation of where you sit, never the answers themselves, and it is the same information the engine used to pair you. Your accept-or-pass decision is never revealed unless you both say yes.

Once a conversation is open you each get the same question every day. Your answer is withheld from the other person until they have written theirs, and neither is shown to anyone else.

Who else sees it

  • Our hosting and database provider, which stores the data on our behalf.
  • Anthropic, but only where an AI-written match note is enabled. In that case we send the two first names, the numeric score, and the short list of dimensions you aligned on. We do not send your email, your messages, your bio, your photo, or your individual quiz answers.

We do not sell your data, and we do not run advertising or advertising pixels.

Analytics

We use analytics to see which pages people get stuck on — nothing loads until you have agreed, and declining changes nothing about how the app works. You are asked once and can change your mind by clearing this site’s data in your browser.

Three things are true of it regardless of what you choose:

  • No page address with an identifier in it is ever sent. A URL like /chat/<id> would tell an analytics company that two particular people are talking, and an invite link would hand over a working invitation. Those are replaced with placeholders before anything leaves, so a report shows that a conversation page was opened without naming the conversation.
  • Session recording never runs while you are signed in. It would otherwise be recording your messages, your profile answers and your photos. It is limited to public pages such as this one.
  • We never send your email, name, photos, messages, quiz answers or matches to any analytics provider.

The providers, when enabled, are Google Analytics, Google Tag Manager and Microsoft Clarity. They set cookies in your browser to count returning visits.

How long we keep it

For as long as your account exists. You can delete it yourself from your profile — it removes your profile, quiz answers, matches and messages, and it is immediate and irreversible.

One thing survives deletion: a report someone else filed about you. If closing an account erased the reports against it, anyone could wipe the record of their own behaviour on the way out. Such a report keeps your display name and email so it stays meaningful to whoever reviews it, and no longer links to an account.

Your choices

  • Pause matching at any time from your profile, without deleting anything.
  • Edit or clear your profile fields and interests whenever you like.
  • Delete your account yourself, from your profile, at any time.
  • Request a copy of your data by emailing hello@slinedating.com.

Contact

Questions about any of this, or a request for a copy of your data or its deletion, go to hello@slinedating.com.

This is an accurate description of what the software does, but it is not legal advice and has not been reviewed by a lawyer. Have it reviewed against the law where your users are — GDPR, DPDP or otherwise — and replace the contact address before you launch.