My registered todoist premium account uses google for login.
Can I change this to a standard email address + password login?
Yes, you can :-) To do so, simply click on the gear icon at the top and go to Settings -> Account.
Here, you'll see an "Edit" link next to "Password", click on it, enter a password, and from now on you can log in manually typing your email address in combination with this newly set password.
Thank you David.
Now I can use todoist on my Blackberry Z30 that can't use google services. :)
Would love a Blackberry BB10 version though.