i suggest agama because it's a  desktop multi-currency wallet in early beta, available for Mac, Windows and Linux made by Supernet.org. Agama offers native support for 12 different cryptocurrencies. You own your private keys with this program, but they are stored as a wallet.dat file on your computer and are not encrypted. This means you have to be vigilant while using this wallet, and it's probably the reason why they have this disclaimer on their website: "Agama Wallet is in early development phase, but already publicly available for testing. It is safe to use, but proper backups should be taken. We recommend you not to use it as a primarily wallet for your cryptocurrencies