I noticed it is free and you have a limit to add 15 NFT to your collection. Each NFT has a limit of 500 users.
They don't have all thier NFT on the platform yet. According to the app they will add more on the 19th of Oct.
They are just beginning with this. As time goes by they will add more features, NFTs and hopefully excusive NFTs from artist.
Since right now the limit is 15 NFTs for user, I think they will add a subscription fee if you want to add more.
I downloaded it and right now I have to say they have to get rid of the large signs that gives the NFT name and creator and time limit. It is getting in the way of viewing the NFT on my iphone. Make it smaller, or show it for a few seconds and make it disappear.