To date, the best cryptocurrency is - bitcoin is the first digital asset that comes to mind of any person, even though there are thousands of cryptocurrencies available all over the world. There are several places where you can buy cryptocurrencies such as Bitcoin, but I will limit them to only one which is the most reliable https://www.bitconnect.co/tr/bitcoin-buyer/ . This is the most reliable app for investing in your cryptocurrencies and it also looks great on the web.