I store my contacts on the SIM card. Can I use Covve?

Unfortunately not.

We have a list of various accounts we sync with (e.g. Gmail, iCloud, Exchange, Outlook) but we currently don’t support SIM cards. We strongly advise our users to store their contacts in one of the previously mentioned address books as it not only allows them to use Covve but as well means that their contacts will be safe even if their phone is lost.