Their site domain looks like they don't plan to run their casino for the long term.  Because of .app is a very cheap and less popular domain.  They may not find .com, .io or any other good domain for their site name.  or they were too expensive so they didn't process them.  Or they already had .com or .  io domain is booked.  So they are being deprived of that domain because it is being sold at a higher price as a premium.  And whether on the other hand a scam Accusations  has been opened against them.  Which is why I don't consider their site as a potential casino site