Sign in

Use the email and password your family gave you.

Forgot your password? Ask a family member to reset it from Users.

Enter your authenticator code

Open Google Authenticator or Microsoft Authenticator and type the 6-digit code shown for Costsy.

Sign in with another account

Choose your own password

Hi . Replace the temporary password with one only you know.

Step 2 of 2

Link your authenticator app

Costsy asks for a 6-digit code when you sign in on a new device. This keeps your family's records safe.

1. Install Google Authenticator or Microsoft Authenticator on your phone.
2. In the app tap +, then scan this QR code.

Can't scan? Enter this setup key in the app:

3. Type the 6-digit code the app shows.