Arbiquant (transilvaniaplatform.com) offers copy trading. I copied a top trader. The copy trades often executed at worse prices than the original. When I asked why they said it was due to latency and liquidity. So the feature is broken or they are skimming. Either way I stopped using it.
Pros: Reliable uptime|Customizable dashboard|Excellent charting
Cons: No live chat on mobile|None so far