Potcoin

Potcoin makes much of the fact it is one of the most secure cryptocurrencies available today. Unusually, it is focused on providing a banking solution for the legalized marijuana industry, hence the name it uses.

You can buy and sell Potcoin online, and download a Potwallet to keep your coins in. Potcoin also comes with the option to download a mobile wallet for either iPhone or Android. At the time of writing, the iPhone app was not available, but was coming soon. And as with other currencies, you can earn interest on your Potcoins.