Yes. You can sign in to your existing Heedy account on another phone.
1. Install Heedy on the other phone
Open the Heedy app and choose the sign-in option.
2. Sign in to your existing account
Use the same account details you normally use for Heedy.
If you sign in with your email, Heedy will send a one-time verification code (OTP) to the phone number connected to your account.
If your account uses Apple ID or Google, use the corresponding sign-in option.
3. Continue using Heedy
Once signed in, you can continue using your existing Heedy account and family connection. You do not need to create a new account or join the family group again.