Carbon Wallet Review
Carbon Wallet is a multi-currency web wallet combined with a mobile app for added security when making payments on a multi-sig wallet, featuring Android and iOS operating system. Carbon Wallet uses encryption and multi-signature Bitcoin technology to secure your wallet and provides out of band 2FA (payments require your secure passphrase and a signature from your phone).
I downloaded it to test, it's been a week, it's good do far , fast response and acceptable commission. I'm going to use it.