$XRP is one of the most controversial cryptocurrencies, but at the same time it is one of the oldest and most famous. It was developed by Ripple Labs with a main goal: to facilitate international financial transfers quickly, efficiently, and at the lowest possible cost. Unlike Bitcoin, XRP does not rely on mining, which makes it much faster and less energy-consuming. The network can process thousands of transactions per second, compared to some cryptocurrencies that suffer from slowness and delays. $XRP