What Sunday is. What it isn't. And what happens to what you share.

Sunday is AI, not a person.

Sunday is an AI companion — it isn't a human being on the other end, and it isn't a licensed therapist or counsellor. It's built to listen without judgment and respond with care, every Sunday evening, whenever you need it.

We say this plainly because trust matters more to us than the conversation feeling seamless. Knowing this doesn't make Sunday less useful — it just means you know exactly what you're talking to.

What actually happens to what you share.

Your messages are sent through WhatsApp (Meta) and processed using Anthropic's Claude AI to generate Sunday's replies. No one at Sunday sits and reads your individual conversations. We don't sell your data, and we don't share your name or your specific messages with anyone.

Sunday remembers context from your past conversations — this is intentional. It's what lets Sunday respond like it actually knows what you've been going through, instead of giving you the same generic, robotic reply every week. This history is used only to make Sunday's replies more personal and relevant to your situation — never to build a profile for advertising, never sold, never shown to anyone else.

Because Sunday runs over WhatsApp, your phone number is technically visible to the systems that deliver the message — the same way it would be for any WhatsApp business account. We don't use it for anything beyond running Sunday.

• We don't sell or share your data with advertisers.
• We don't post or publish anything you say.
• Conversation history is used only to personalize your replies — never for ads or profiling.
• You can stop talking to Sunday any time — just stop replying, or message "stop."

Not intended for children.

Sunday is built for working adults navigating job-related stress, and is not intended for anyone under the age of 13. We don't knowingly collect information from children.

Reach us directly.

If you have any questions about this page or how Sunday works, you can reach us at heysundayapp@gmail.com.

This page may change.

We may update this page as Sunday evolves. Changes will be posted here with a new date below.

July 9, 2026

What Sunday can't do.

Sunday can hold space for a hard week, a difficult manager, or the dread of Monday. What Sunday can't do is replace real medical, psychological, or emergency care. If something is more than "Sunday scaries" — if it's ongoing, serious, or urgent — please reach out to a real professional or someone you trust. Sunday will never be offended if you need more than it can give.

You're not alone, and there's real help available.