HRF Bounty #11: Non-Custodial Mobile Wallet with BIP47 Payment Codes
"HRF added a new bounty to its challenge: 1 BTC each to the first 2 popular self-custodial, open-source iOS or Android wallets that add send and receive support for BIP47 payment codes."
https://www.nobsbitcoin.com/hrf-issues-bounty-11-non-custodial-mobile-wallet-with-bip47-support/