I tried crypto chipher for some time and i can tell it works but you need to have a lot of money to have good profit. Signal work and are based on trading analysis.
Why we need lots of capital to trade along with their signal? I am seeing 2 possibilities for your statement:
1. Either they may give short term signals so we need to have more number of positions to gain significantly.
2. Or, they provide signals for multiple assets at a time hence we need big capital to open positions in more number of assets. This way, some signal will work for profits and rest will lead to losses. But, overall profits will be possible as they cover more assets.
An efficient signal provider must support even small capital based trader as well. But, I am also seeing some premium signal providers are sitting limit for capital to avail their services. But, I will not justify their rule.