Can I use it for free?
Yes. The Free plan needs no card. You can register up to 3 artworks and start 5 Standard scans a month yourself.
When can I upgrade?
Paid plans are not open yet. Create a free account now; the upgrade will appear in the app when paid plans open. Nothing is charged until you choose a plan.
What is a Deep scan, and what are credits?
A Deep scan looks further than the Standard scan and costs real money to run, so it is paid for with credits: one credit for one artwork. Every new account gets 3 credits once. How many credits Pro and Extra include will be announced when paid plans open.
Why is the source hidden on Free?
On Free you still see that a possible copy exists and how strong the signal is, so you can judge whether it matters. The page where it was found is shown on Pro and Extra.
What about cancelling and refunds?
The cancellation and refund terms will be published on this site, and in the Terms, before paid plans open.
More answers are on the Help page, or write to sdepsen@gmail.com.