The download is free, and so is the Free plan. Bring a few people you trust and the borrowing starts on day one.
That's the whole sign-up. A six-digit code arrives, you type it in, you're in.
Opening an invite link on your phone installs the app and lands you straight in their Fold.
Make one for your block or your family, add a couple of things, and send the link to the people you'd trust with a spare key.
Three Folds, fifteen people in each, fifty items. Paid plans exist for bigger circles; lending never costs anything between members. Compare plans.
No ads, and nothing about you is sold to anyone. The policy is short enough to read over coffee. Read it.
Your items, your Folds, and your borrows are visible only to the people you've invited. There is no public anything.