Watch ESPN is your source for live Monday Night Football broadcasts (as well as “a ton” of college games). The app is free, but using it requires a subscription to a major cable provider such as Time Warner or Verizon FiOS. (Android and iOS)
NFL Game Rewind is for fans who need to watch every snap of every game, even the games they can’t catch live. For $35, you get full or condensed replays of every game your team plays. For $5 more, you get every regular season game of every team, while $70 buys you a package featuring the “All-22” coaches’ view, which shows all the players on the field. (Android and iPad)
NFL Sunday Ticket by DirecTV lets you watch every NFL game live on an iOS or Android device. But you have to be a subscriber to Sunday Ticket, which costs $300, as well as to DirecTV.