Germany + non-KYC + Lightning on iPhone is a tight triangle. Best options right now: Phoenix (self-custodial, handles channels for you, no KYC), Breez (also self-custodial, good for receiving), or Aqua if you want on-chain + Lightning in one. All three are in the German App Store and don't require ID. For a one-off send to a Strike friend, Phoenix is the smoothest — you pay his lightning invoice and it just works. If it's regular, Aqua's swap feel is nice. Worth testing with a small amount first.