Twosday

Privacy Policy

Effective date: 25 October 2026

Twosday ("the app") is a relationship journaling app that uses AI to help couples reflect individually and communicate together: a private space for each of you, and a shared space for the conversations you have together. It is provided by Twosday App Ltd, a company registered in England and Wales (company number 17540701) ("we", "our", "us"), which is the controller of your personal data. This policy explains what data we collect, how we use it, and your rights.

What We Collect

• Account information — your first name and either your Apple ID identifier or your email address and password.
• Conversation content — messages you send in private sessions and shared sessions, session summaries generated by the AI, and any notes you choose to share.
• Audio — when you use a voice feature, your audio is streamed to Deepgram to be turned into text. We never keep the audio of a recorded conversation or a spoken answer: a recording is kept only as its summary, and a spoken answer as its words. A voice memo you add to a capture is saved with the capture, along with its transcript.
• Captures and Memory — the captures you write, with any photos or voice memo. A capture can stay private or be saved to Memory, your shared archive: the captures either of you saves there, the takeaways from the conversations you have together, and your relationship's milestones. Once you're paired, you and your partner both see Memory.
• Context documents — AI-generated summaries of your session history, used to provide continuity across sessions.
• Relationship data — the link between you and your partner (no other personal details about your partner beyond their name).
• Usage and diagnostics — which features you use, through PostHog, never what you write, record or feel; and reports of errors and crashes, through Sentry. Both know you only by a random ID.

How We Use Your Data

• To provide the service — your conversation content is sent to Anthropic's Claude API to generate AI responses, session summaries, and context documents. So is a capture you're still writing, before you save it, when Twosday offers you a prompt for it.
• To maintain continuity — session summaries and context documents are stored so the AI can remember prior conversations.
• To send transactional emails — email verification and password reset codes are sent via Resend.
• To improve Twosday's AI, only if you say yes — Twosday asks you once whether what you write may be used to train and research the AI behind it, and you can change your answer at any time in Settings, under Model improvement. It's off unless you say yes. Before anything is used, your name and the details that identify you are taken out. A conversation you have with your partner counts only if you both said yes. If you turn it off, or delete your account, nothing you wrote is used from then on.

The Privacy Boundary

Your private sessions are never shared with your partner, or used for what the two of you see together, unless you choose to keep a note for both of you. This boundary is enforced at the server level — it is not a UI-level restriction.

When you keep a note for both of you, only that note crosses the boundary: your partner's Twosday keeps it in mind, and it can shape the Themes you both see, without your name on it.

Sharing Outside Twosday

Either of you can make a picture of up to nine memories from Memory and share it outside Twosday, to Messages or Instagram for example. It can show any memory in Memory, including ones your partner saved. You choose which memories it shows, and its headline and line. The picture is made on your phone, and once you share it, it is no longer in Twosday's control.

If you ask Twosday to suggest the headline or the line, the words of the memories you chose are sent to Anthropic's Claude API to write it. The text that goes with the picture carries a link to sign up for Twosday, never a code to join your relationship.

Third-Party Services

• Anthropic (Claude API) — processes conversation content to generate AI responses. Anthropic's data retention policy applies to data sent to their API. See Anthropic's privacy policy.
• Deepgram — turns speech into text when you record a conversation, answer aloud in a voice session or add a voice memo, and speaks Twosday's lines aloud in voice sessions. It receives the audio, and the text of what Twosday says, which can mention what you and your partner said. We ask Deepgram not to use any of it to train its models, so it keeps it only as long as it takes to process. See Deepgram's privacy policy.
• Resend — sends transactional emails (verification codes, password resets). See Resend's privacy policy.
• Cloudflare R2 — stores the photos and voice memos you add to captures. See Cloudflare's privacy policy.
• PostHog — product analytics: which features are used, under a random ID, never what you write, record or feel. See PostHog's privacy policy.
• Sentry — receives reports of errors and crashes, which we use to fix them. See Sentry's privacy policy.
• Apple — authenticates Sign in with Apple users. See Apple's privacy policy.

Data Storage and Security

Your data is stored in a server-side database hosted on Railway in the United States (US East); photos and voice memos are stored in Cloudflare R2. API keys and sensitive credentials are never stored on your device. Communication between the app and server uses HTTPS/WSS encryption. Passwords are hashed using argon2id and are never stored in plain text.

Data Retention

Your data is retained for as long as your account exists. When you delete your account (available in Settings), your data is deleted from our database and storage at once, including:

• Your user profile
• All private sessions and messages
• Your captures, with their photos and voice memos
• All notes, threads and your private context document
• What you made on your own: Memories, Things To Discuss, guides and recordings

One thing stays: what you made together with a partner. A relationship you're in ends as if you had left it (below), and what the two of you made together stays in your partner's archive until they delete it, as messages you sent stay with whoever received them. Your words in your conversations together stay there, and summaries keep the names they were written with; your photo, your account name and your answers about yourself don't.

If either of you ends the relationship, what you made together (your conversations together and their summaries, your Things To Discuss and guides, and the Memories of them) is kept as an archive that only the two of you can open, read-only, from your profile, and it comes back if you pair again. Each of you can delete it for yourself; it's deleted once you both have. Each of you keeps your private space, the captures you saved to Memory, and what you made on your own. Themes, Lately and Insights from your time together are deleted.

Our database backups, kept so we can recover from a failure, still hold deleted data until they expire. Usage analytics, which know you only by a random ID, stay with PostHog.

Your Rights

• Access — you can view all your data within the app.
• Deletion — you can delete your account and your data at any time from Settings. What you made together with a partner stays in their archive until they delete it, as above.
• Correction — you can update your name in Settings.
• Model improvement — you can say yes or no to what you write being used to improve Twosday's AI, and change your answer at any time in Settings.

Children

Twosday is not intended for anyone under the age of 18. We do not knowingly collect data from minors.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated effective date.

Contact

Questions about this policy? Email us at support@twosday.app.