There is no free version, only paid web access or free client/api version. Not sure what your question is
Discussion
I'm signed into nostr.build account via web and have uploaded 3 images there before at no cost. Trying now, but 'loading' is spinning for a long time. Thought that if I verify npub it might help get past this loading.
Anyway, is there an option to pay month to month for purist?
It makes no sense to have a monthly subscription for media hosting. Do you propose we delete your media each month where you can be late by a day or a minute. You are welcome to use any Nostr client to upload for free though