In case you missed it, interesting post about how nostr:npub1current7ntwqmh2twlrtl2llequeks0zfh36v69x4d3wmckg427safsh3w (nostr client with built in wallet) managed to find a way to keep zaps in their iOS app: https://www.nobsbitcoin.com/how-current-app-got-to-keep-its-zaps-on-the-apples-app-store/