If using inmateAid to send a physical letter to an inmate does it cost them money to return a letter? Also how do I recieve the reply? Do they scan it and send it to my recieved inbox or something? I live abroad not in US.

The members of InmateAid can send and receive letters from their inmates. Yes, InmateAid scans the inmate's letter and places it in the member's account. The member receives an email letting them know there is a letter to retrieve. There is a fee to 'unlock' the letter, it is less than $2. This Service is perfect for overseas communication, it's fast, safe, inexpensive, and reliable since 2012.