Hey, there is no app associated with Satlantis. It's just like any other Minecraft server that you can connect to with an IP address. Curious to hear where you are reading negative reviews.

We've processed millions of sats worth of withdraws. They do go through a verification process for security purposes to ensure their legitimacy. A game with as much depth as minecraft comes with some potential exploits that we have to keep an eye on. We also host bug bounties for such things.