Since PokerTracker software doesn't fit into either of these categories it is generally allowed on most sites, including industry leader PokerStars.

Here's why you should use Poker Copilot as your PokerStars HUD: Poker Copilot has worked with PokerStars since 2008. We're on their list of officially approved software. Poker Copilot supports scheduled tournaments, ring games, "Sit & Go" tournaments, "Spin & Go" tournaments, and Zoom Poker (Zoom for Mac only).