You can use nostr:npub1tnpfz60snm7ler8k8c69335n37we6690qttl88t556yzkjxhahjq3kkkpe nip-07 ext on iOS
Discussion
It is trustworthy?
Many of us have used it ever since it first came out a long time ago. IIRC nostr:npub137c5pd8gmhhe0njtsgwjgunc5xjr2vmzvglkgqs5sjeh972gqqxqjak37w was the one that updated it to work with iOS 18.
I can’t claim it to be 💯 trustworthy due to how the keys are stored (and that is applicable to many nip07 extensions), but it works and I use it. Also, you can just create an account and don’t pay an invoice, verifying using the DM. And most of the clients support Nostr.build out of the box so webpage uploads are not required at all. It is only in rare cases where you’d need to upload using the webpage.