What app tells me where to watch movies?

The best app for finding where to watch movies is JustWatch. Search a movie or show and it shows which streaming services, rental stores, or purchase options have it in your country.

Other good options:

• Reelgood: similar to JustWatch, especially useful if you want recommendations across your subscriptions.
• Letterboxd: best if you also want movie logging, reviews, watchlists, and links to where a film is available.
• Google TV / Apple TV app: convenient if you already use Android/Google TV or Apple devices, though coverage can vary by app and region.

For most people, start with JustWatch because it is focused specifically on “where can I stream, rent, or buy this?”