Making any in-app purchase in Picture Cross will disable ads. You will still be given the option to watch videos for rewards.
 
While ads are disabled, you may still occasionally see informational messages about offers and events within the game itself.
 
Please note that ads may be re-enabled if the game is deleted and reinstalled. You can safeguard your progress and settings by signing into the Cloud Saving feature - please refer to the "Sign in to save your progress to the cloud" FAQ for details.