I can't sign in.

There could be two reasons for not being able to sign in: 

1. I forgot my password.
Go here to set a new password. 

2. E-mail address cannot be found. 
Cally.com offers the possibility of creating events without creating an account. When you your e-mail address cannot be found, it could mean that you haven’t made an account with this specific e-mail dress.

If you want to manage and track events fast and easy, you can create an account for free here.