Thank you for your question. Unfortunately, I am not familiar with any existing options for accomplishing this with Prestashop.
This type of tool would most likely have to be created by an app developer.
If you have any further questions, feel free to post them below.
John-Paul thanks for your response but I was just looking to obtain the name of the script (source code) in Prestashop that runs once the order has been processed so that I can then figure out where to place my code do send order data to a mobile app - all I looking to find is the script to modify. Thanks.