I am also using this app for quite some time. It gives a lot of insight, but also advises readers to do their own research. Not just blindly follow every signal :) Lost by following some of the signals, but also increased my portfolio value by following some other signals.
There are a lot of factors influencing the behavior of an alt-coin. If btc price suddenly crashes for example, every analysis based on recent historical data can basically thrown away :(
Thanks Lion for sharing your experience here