Copay is a Bitcoin Multi Signature wallet, it is very secure and in addition to this it is open source. We can use it on desktop and mobile devices. It uses a platform such as Bitcore Wallet Service (BWS), which is used for peer synchronization and the network interface.
This wallet has many features, these are, it has support for more than 100 options of foreign currency price and unit denomination in BTC, it has security in devices, this means that all private keys are stored locally, not in the cloud , this gives you full access to the user and in control of it, it is also available for iOS, Android, Windows Phone, Chrome App, Linux, Windows devices, among others