There's a multi-exchange platform out there that I've tried called Sigma that's pretty good? It's a webtrader made by a company called Hydra X and it serves the same purpose as Coinigy, but it's like completely free to use for now! Think the company is fairly new and still in the process of developing the software to incorporate other assets such as commodities, FX etc, so its letting users try it for free first. But its crypto services are up and running already and its really easy to use. You just need to create a free account with your email to link your exchange accounts through API keys.