Keepr Keepr is paid for by storage. That's the whole business model, and it's why there are no ads anywhere in the product for anyone you invite.
These pages cover the personal side: what you get for nothing, how to think about which plan you need, whose storage a photo uses, and what happens if a payment fails.
Family Hub billing lives with Family Hubs, not here — if your question is about a hub's plan or its payment, that's the page you want.
Prices and what each plan includes are on the pricing page, which stays current in a way a help page can't.