drop is free to use right now — publish as many pages as you want, public or private. No card, no catch.
Being upfront about the future: servers, storage and bandwidth cost money, and that bill grows as drop grows. At some point that probably means a few optional paid features to keep the lights on — things like custom domains or extra storage.
But the core stays free: publishing pages and sharing links isn't going behind a paywall. And we'll tell you well before anything changes.