I use nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm for zaps. It is custodial, it’s also a pwa and not exempt from certain risk, but not the same risk of being canned by app stores.

nostr:npub1mutnyacc9uc4t5mmxvpprwsauj5p2qxq95v4a9j0jxl8wnkfvuyque23vg is another great option to look into for zaps IMO and has made a lot of progress in consistency and resolving issues

I go between the two for zaps tbh