Electrum Mobile

Electrum’s mobile wallet is yet another great, user-friendly choice, but like Green and Samourai, it has plenty of features for advanced users. It supports cold-storage, multisig, hardware wallet & BTCPay server integration, has a privacy add-on called Electrum Personal Server, which allows you to integrate your mobile wallet with your own self-hosted node and backend server, for extra security.

    iOS & Android
    Encrypted private keys on your device.
    Supports 2fa
    Full-offline mode for secure cold storage, watch-only, multisignature transactions, or offline signing of Partially Signed Bitcoin Transactions (PSBTs).
    Can be used with several popular hardware wallets, or Tails Linux privacy distro.
    Can be combined with self-hosted Electrum Personal Server for added privacy and operational security.
    Integrates with BTCPay server.