I bought this app, I'm observing, but I haven't checked the authenticity of the signals by actively trading.
What I find strange about this review (I repeat that I haven't checked the signals by trading), is that it says that many signals reach TP1, TP2 and then end at the stop loss and they count them as winners, and that's because they use trailing stop loss on all signals, so it's normal that reaching TP1, TP2 are counted as winners, since your entry goes up to at least break even and you have partially closed at TP1 and TP2 (they use 5 TPs) and the rest is closed at break even or TP1 if the price cross TP2 (I think this is the setup of the trailing stop).