Terms of Use

These terms cover Check In by text and the Check.in iPhone app. System1 runs the texting beta; S1 Check.in, LLC distributes the iPhone app. By using the app, asking for an invite or texting Check In, you agree to them and to the Privacy Policy.

Who can use it

• You must be 18 or older and in the United States.
• The iPhone app is available to eligible adults in the United States. Some texting beta access requires an invitation or passcode. Invite codes are single-use and personal; please don't share them.
• We may pause, change or end the beta, or anyone's access to it, at any time.

Not medical advice

Check In is an AI. It isn't a doctor, pharmacist or other healthcare provider, and it doesn't diagnose, treat or prescribe. It shares general information and suggests questions to bring to your own clinician. Never start, stop, skip or change a medication or dose because of something Check In said. Read the full Medical disclaimer.

Check In is not for emergencies. If you might be having a medical emergency, call 911. If you're thinking about hurting yourself, call or text 988.

Messages

• By text, you start the conversation by texting Check In. It replies to your messages; message frequency varies. In the app, you can chat with Check In in the app's chat instead, including without a phone number if you sign in with Apple or Google. The same AI, and the same terms, apply.
• If you use texting, message and data rates may apply.
• If you use texting, text STOP to opt out, START to opt back in, HELP for help, and DELETE to erase your account. In the app, Account has Delete.
• Carriers aren't liable for delayed or undelivered messages.

AI can be wrong

Replies are written by an AI model. They can be incomplete, out of date or wrong, even when they sound confident. Check important information with your clinician or pharmacist, and with the label that came with your medication.

Using it fairly

Please don't use Check In to break the law, to harass anyone, to try to get around its safety checks, to overload or probe the service, or to get other people's information.

The beta

Check In is free during the beta. It's provided as is, without warranties of any kind, and may have bugs or downtime. To the extent the law allows, System1 isn't liable for indirect or consequential damages from using it, and its total liability is limited to $100.

Changes

We'll update these terms as the beta changes. If a change matters, we'll tell you by text or in the app before it takes effect. Continuing to use Check In means you accept the update.

Contact

Email hello@check.in. If you use texting, you can also text FEEDBACK followed by your message to Check In, and the team will see it.