You can watch American Monster mainly on true‑crime friendly streaming services and live TV bundles that carry Investigation Discovery.

Main streaming options

  • In the US, recent seasons stream on Max (formerly HBO Max) and Discovery+, often listed simply as “American Monster” under the Investigation Discovery hub.
  • Several live TV/skinny bundles that include Investigation Discovery (like Philo or YouTube TV) also let you stream American Monster on demand as part of the channel’s library.

On‑demand purchase or rental

If you prefer to own episodes:

  • Individual episodes and seasons are available to buy digitally on Amazon Video and Apple TV, with most or all current seasons listed.
  • Some regions also list it on Fandango at Home (formerly Vudu) as a purchase option, especially for newer seasons.

Free (with ads) options

  • In some regions, episodes are available free with ads via Investigation Discovery’s own on‑demand apps or partner platforms such as The Roku Channel.
  • Outside the US, local catch‑up services may carry it; for example, JustWatch notes that in Australia certain episodes can be streamed free via local platforms like 9Now.

Region and season differences

  • Availability changes by country, and not every service has every season, so it is worth checking a streaming guide (like JustWatch) with your country selected to see exactly where American Monster is currently offered.
  • Newer seasons sometimes appear first on services tied closely to Investigation Discovery (Discovery+, Max, or live‑TV bundles that carry ID), and only later roll out widely to purchase platforms.

Information gathered from public forums or data available on the internet and portrayed here.