There is in fact a whole range of software types to distinguish here:, - apps that are entirely free - apps with ads - apps with removable ads - apps with p

There is in fact a whole range of software types to distinguish here:, - apps that are entirely free - apps with ads - apps with removable ads - apps with premium features - apps that are demos (unlockable to the full app by paying) - apps that sell cheats (99% of IAP games, the ones that disguise their cheats as "energy" or "coins" or "gems")