With each rank you gain, the bigger the rewards.
The ranks and the rewards:
-BRONZE-
Bronze 1 Daily case, 24-hour 10% Rakeboost
Bronze 2 Improved Daily case, Free Coins, 24-hour 10% Rakeboost
Bronze 3 Improved Daily case, Free Coins, 24-hour 10% Rakeboost, Vault increase
Bronze 4 Improved Daily case, Coin Bonus, 10% Rakeboost, Vault increase
Bronze 5 Improved Daily case, Coin Bonus, 10% Rakeboost, Vault increase
-SILVER-
Silver 1 Silver Daily Case, Free Coins, 24-hour 15% Rakeboost, Vault Increase
Silver 2 Improved Daily case, Free Coins, 24-hour 15% Rakeboost, Vault Increase
Silver 3 Improved Daily case, Free Coins, 24-hour 15% Rakeboost, Vault Increase
Silver 4 Improved Daily case, Free Coins, 24-hour 15% Rakeboost, Vault Increase
Silver 5 Improved Daily case, Free Coins, 24-hour 15% Rakeboost, Vault Increase
-GOLD-
Gold 1 Gold Daily Case, Free Coins, 24-hour 20% Rakeboost, Vault Increase, VIP Telegram Group, Monthly Bonus, VIP Host
Gold 2 Improved Daily case, Free Coins, 24-hour 20% Rakeboost, Vault Increase
Gold 3 Improved Daily case, Free Coins, 24-hour 20% Rakeboost, Vault Increase
Gold 4 Improved Daily case, Free Coins, 24-hour 20% Rakeboost, Vault Increase
Gold 5 Improved Daily case, Free Coins, 24-hour 20% Rakeboost, Vault Increase
-PLATINUM-
Platinum 1 Platinum Daily Case, Free Coins, 24-hour 25% Rakeboost, Vault Increase
Platinum 2 Improved Daily case, Free Coins, 24-hour 25% Rakeboost, Vault Increase
Platinum 3 Improved Daily case, 24-hour 25% Rakeboost, Reloads, Vault Increase
Platinum 4 Improved Daily case, Free Coins, 24-hour 25% Rakeboost, Vault Increase
Platinum 5 Improved Daily case, Free Coins, 24-hour 25% Rakeboost, Vault Increase
-DIAMOND-
Diamond 1 Diamond Daily Case, Free Coins, Special Reward, Vault Increase
Diamond 2 Improved Daily case, Free Coins, Special Reward, Vault Increase
Diamond 3 Improved Daily case, Free Coins, Special Reward, Vault Increase
-APEX-
Apex 1 Apex Daily Case, Special Reward, Vault Increase, Private Jet
Apex 2 Improved Daily case, Special Reward, Vault Increase, Lamborghini
Apex 3 Improved Daily case, Special Reward, Vault Increase, Anything you want ($500k)