Since Disney acquired 20th Century Fox (which distributed Prison Break ), the series is available on Disney+ (and Hulu in the US). While this is a streaming subscription, both platforms offer on their mobile apps.
While Season 3 is frequently ranked as the "worst" season by critics due to its rushed production and the abrupt exit of a main character (due to the writer's strike), it is actually the most brutal and underrated chapter of the saga. Prison Break Season 3 Complete Download