"Over the past several years Edovo tablets have been adopted in jails in Alabama, California and Pennsylvania, as well as facilities operated by the Illinois Department of Juvenile Justice. In those jurisdictions, the tablets are made available to prisoners at a cost of about $2 per day – the tablets are typically purchased using funds from inmate welfare accounts, and provided to prisoners at no cost. Of course, the money in inmate welfare accounts usually comes from prisoners and their families through commissary purchases, visitation vending machine revenue and phone commission kickbacks."