The only one available to iOS users is nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5 and apparently you need your own node in order to use the app.
Doesn’t seem very user friendly for noobs.
nostr:npub1mutnyacc9uc4t5mmxvpprwsauj5p2qxq95v4a9j0jxl8wnkfvuyque23vg nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5 and ln.tips on telegram (didn’t tag them properly on last note)
Discussion
Get alby is a lightning wallet. You access it through their website.
Mutiny wallet is a wallet and a node. You access it through their website (both are iOS and android)
Zeus is an app on iOS. Yes you can connect it to your own node but it also has an lsp feature so you can have a lightning node in your phone.
I have all 3 they all work on iOS 🤷🏾