Privacy Policy

usebtwn ("we," "us") provides a communication tool for couples. This policy explains what information we collect, why, and what we do (and deliberately do not do) with it.

What we store

• Account information: your email address and a securely hashed password, managed by our authentication provider (Supabase). We never see or store your password in plain text.
• Credit balance: how many credits are on your account and a short history of grants and spends (signup bonus, pack purchases, sessions used), tied to your account.
• Subscription status: if you subscribe, we store your Stripe customer and subscription IDs and status (active, canceled, etc.). If you buy a credit pack instead, we store the Stripe checkout session id for that purchase, to prevent it from being credited twice. We never receive or store your card number, Stripe handles that entirely.
• Shared sessions: if you invite a partner into a shared session, we store both people's email addresses and, for each message in the back-and-forth, only the short "what might be underneath" insight, never the raw text either of you typed. If a message describes a safety concern, nothing about it is stored here at all. Either person can end the conversation at any time, which permanently deletes the whole thread, both emails and all messages, right away. A partner's first reply is also only stored if they explicitly choose to share it; if they decide not to, nothing about their reply is saved either.
• Optional check-ins and marketing: if you opt in (a check-in reminder, or the marketing checkbox on a shared session), we store your email for that specific purpose. We only send marketing email to addresses that explicitly opted in, never to someone just because they were invited to a shared session.
• Session history: we keep your last 5 translate-a-fight or word-a-reply results, tied to your account, so you can look back at them. This is the AI's response only (the calmer expression, underlying need, or reply options), never the original text you typed. Only your 5 most recent results are ever kept; older ones are deleted automatically as new ones come in. You can clear this at any time from the app itself.

What we deliberately do not store

The text you paste into "what happened" or "what they said" is sent directly to our AI provider (Anthropic) to generate a response, and that response is sent back to your browser. We do not save this text to our database. This is a deliberate choice given how personal and sometimes sensitive this content can be, and it holds regardless of session history above: history keeps the AI's response, never what you originally typed. It also applies to our analytics tool (PostHog, see below): that text box and the AI's results are specifically excluded from anything PostHog can record or see.

The country you select (to show the right support resources) is not stored anywhere either, it only affects what's shown to you in that moment.

If you use the microphone button to speak instead of type, usebtwn never receives, sees, or stores your voice audio at all. Your browser sends that audio directly to its own speech-recognition service (see "Third parties we use" below) to convert it to text, and only the resulting text ever reaches usebtwn, exactly as if you had typed it yourself.

Third parties we use

• Anthropic (Claude), to generate the translate/reply suggestions. Your input is processed according to Anthropic's own privacy practices.
• Supabase, for authentication and our database.
• Stripe, for subscription billing and credit pack purchases. Stripe collects and stores your payment details directly; we never see your full card number.
• Resend, to send transactional email (shared session invites, check-in reminders) and, only for addresses that opted in, occasional marketing email.
• Your browser's speech-recognition service (for example, Google's, in Chrome), only if you use the microphone button. This is your browser talking directly to its own vendor, not something usebtwn routes or controls. See "What we deliberately do not store" above for what this means in practice.
• Sentry, for error and crash monitoring, so we can catch and fix bugs. Sentry may receive technical details about an error, like a stack trace or which page you were on, but is not intentionally sent the text you type into the app.
• Vercel, our hosting provider, which processes all traffic to and from the app as a normal part of serving it to you.
• Google (Tag Manager and Analytics), sitewide, to understand how visitors find and use usebtwn. This does not affect what we store about the content of your sessions, only page-level usage analytics. See "Cookies" below for what this means in practice.
• PostHog, inside the app itself, to see which features get used and where people get stuck, including anonymized session replay of how someone moved through the app. As described under "What we deliberately do not store" above, the text box and the AI's results are specifically blocked from what PostHog can record; replay only ever shows the surrounding interface, never that content. If you're signed in, your account email is sent to PostHog so your activity there is tied to one person instead of counted as a stranger on every visit. If you're not signed in, for example responding to a shared-session invite without an account, you're tracked as an anonymous visitor only.

Your data may be transferred to and processed in countries other than the one you're in, including the United States, by these providers.

Cookies

We use a login session cookie so you stay signed in. We also use Google Analytics and PostHog, which set cookies to measure site and app usage (for example, which pages get visited and how often). We do not use advertising or cross-site tracking cookies, and analytics data is not linked to the content of your sessions with usebtwn.

How long we keep things

Account data is kept for as long as your account exists. To request deletion of your account and associated data, contact us at hello@usebtwn.com. We don't yet have a self-serve delete-my-account button; we're handling deletion requests manually for now.

Safety-related content

If what you write is identified as describing a safety concern, our AI is instructed to respond with validation and never to make a diagnosis. Crisis and support hotline numbers shown to you are hardcoded by us based on your selected country, never generated by the AI, specifically to avoid the risk of an AI-generated phone number being wrong.

Children

This app is intended for adults 18 and older and is not directed at children.

Changes to this policy

If this policy changes in a material way, we'll update the date at the top of this page.

Contact

Questions about this policy: hello@usebtwn.com.