I cannot sign in to my account

Most sign-in problems come from using a different method than at sign-up. Check whether you registered with Google, Apple, email or a username before resetting your password.

Updated 28 October 2026

1. Use the same sign-in method as at sign-up

You can sign in to Knowunity with Google, Apple, your email and password or your username and password. If you registered with Google or Apple, there is no Knowunity password to enter. Tap the matching button on the login screen instead.

Tip: an Apple sign-in that used Hide My Email gives your account a private relay address. Sign in with Apple again rather than typing an email.

Signed up with Apple and now using an Android phone? Update the app, then tap Continue with Apple on the login screen and use the same Apple ID. Older versions of the app on Android have no Apple button and ask you to set a password instead.

Google sign-in fails on Android

Follow the error shown: add or check your Google account in device settings, use automatic date and time, or update Google Play services.

If Google sign-in still fails, choose Log in with email instead when offered. This starts a password reset.

Sign in with a username on the website

Enter your username or email address in the Email or username field, then your password. If you use Google or Apple, choose that sign-in method instead.

The app could not verify your device

When you sign in, sign up or reset your password, the app checks that it is a genuine copy running on a real device. If that check fails, one of these happens:

  • A Quick check page opens with a short puzzle. Complete it and the app carries on with your sign-in. If you close it, you see We could not verify your device. Please reinstall the app.
  • On Android, if the app was not installed from Google Play, you see We could not verify this copy of the app. Please install Knowunity from the Google Play Store and try again. Uninstall it and install Knowunity from Google Play.
  • Something went wrong. Check your connection and try again means the check could not go through. Check your internet connection and try again.

If you still see We could not verify your device. Please reinstall the app., uninstall the app, install it again from the App Store or Google Play, and sign in again.

2. Check the email address

The error no account found usually means a typo or a different address than the one you registered with. Try your other email addresses.

3. Reset your password

If you registered with email or username:

  1. On the login screen, tap Forgot password? then Reset it.
  2. Enter your email address.
  3. Open the link in the email and choose a new password with at least 8 characters.

If no email arrives, see I did not receive the confirmation or password reset email.

4. Confirm your email address

New accounts must confirm their email before they can sign in on the website. Open the confirmation email we sent at sign-up or request a new one from your profile in the app.

5. Update the app

Install the latest version from the App Store or Google Play and try again.

Still locked out?

Contact support with the email address or username of the account and the exact error message. We cannot change the email of an account without proof that it is yours.

Can't find what you're looking for? Our support team is happy to help.Contact support