You can start playing as a guest, and registering simply protects and syncs your progress. Guest play lets you jump straight into a game with a chip balance without creating a full account first. When you sign in, your chips, stats and settings are saved to your account and can sync across devices, so you will not lose progress if you switch from the browser to the Android app or get a new phone. Signing in is free, and the games remain virtual-chips only with no real money. If you want ad-free play and cosmetics, VIP is an optional extra.