Support

Knock is in private testing through Apple's TestFlight. It is not on the App Store yet.

Contact

A question, a bug, a problem with your account, or something to report? Write to us and we will get back to you as soon as we can.

Common questions

How do I sign in?

With Sign in with Apple, and nothing else. Knock has no passwords and never asks for your phone number or your contacts.

How do I add friends?

With an invitation link, by asking a friend of one of your friends, or by searching for someone's exact username. Friendship is always mutual: the other person says yes in the app. You can have at most 24 friends.

What is my username for?

It is how someone who shares no friend with you can find you. Anyone on Knock who knows your exact username sees your first name and profile photo, and can ask to be your friend.

What is a knock?

A knock asks a friend to show what they are doing. It cannot be taken back, and it goes away after 24 hours if it is not answered. Who knocked stays hidden until the friend answers.

Why did a photo disappear?

An answer lives for 7 days and is then gone for everyone, unless the person who took it keeps it in their Museum.

Who can see my photos?

Only friends. An answer goes to the friends who asked. A photo you keep hangs in your Museum, where your friends can see it; you can leave individual friends out, photo by photo. Photos are never public. Bear in mind that a friend who has received a photo can keep a copy or take a screenshot.

I am not getting notifications.

Check that notifications are allowed for Knock in your iPhone's Settings, under Notifications. If they are and still nothing arrives, write to us.

How do I report something?

Write to support@itsknock.com and tell us what you saw. We act on every report within 24 hours. Reporting from inside the app is not built yet.

How do I delete my account?

Deleting an account is not in the app yet. Until it is, write to us: Delete your account says how, and what is removed.

Can I get a copy of my data?

Yes. Write to support@itsknock.com and we will send it to you within 30 days.

Found a bug?

Tell us what happened and what you expected, your iPhone model and your iOS version. A screenshot helps.

Privacy and terms

The Privacy Policy says what Knock stores about you and what your rights are. The Terms of Service are the rules for using Knock.