BlueCoins supply inflates at a stable 3% per year. Rewarding the coin holders who verify the network, while at the same time energizing the economy! How often is the amount charged?
Currently, all 3% are delegated to miners. Later on, when cold staking comes online, it will be 2% to POW and 1% to POS. We will see on the next update how often will POS rewards be paid. Devs are currently working on utilizing bluetooth mesh networking.