Nobody knows how much Bitcoin will cost and how many participants will be connected to the network, for example, in a week. When all 21 million bitcoins are mined, there won’t be a block reward to pay to miners. Thus, mining will suit you only if you use an unnecessary smartphone that is constantly plugged into the network, but even in this case, the profit will be low. It offers you a micro-wallet to store your small amounts of digital assets. Bitcoin faucet is a way of obtaining bitcoins in very small fractions. In cloud mining, you would not have to use supercomputers or to install hardware by using the great power of electricity.