A good idea. In most countries, people can only buy themselves a mobile phone. They do not have the money for a full-fledged computer.
So, you're thinking that phone alone can mine a crypto then you're wrong. There's no phone Application today that actually gives you a coin through mining but those phone that were talking about are dedicated miners, the number of phone not less than a dozen and that is grouped together and working 24/7 with each attached power cables on, the OS were modified to maximize the RAM and power to meet the required processing power to solve mining difficulty.
That's how phone perform as dedicated miner, but we can't use our phone to mine crypto and at the same time we'll use it as daily use.
