From the guys who brought you Mystery Science Theater 3000, RiffTrax makes movies FUNNY! Our hilarious commentaries turn some of the biggest blockbusters (and cheesiest B-movies) into comedy hits.

“The RiffTrax app syncs everything up perfectly.” - CNET

“Rifftrax app takes the guesswork out of syncing jokes to film. It’s easier than ever to sync MST3K-like commentary. The app uses your device’s microphone to listen for a movie and automatically syncs Rifftrax playback to the film. It’s simple and easy...” - Engadget

“The app can recognize movies from Netflix, iTunes, Amazon Video, DVDs, Blu-rays, your TV, computer, and other streams.” - High-Def Digest

Using the app, you can download these "riffs" on blockbuster films like Twilight, Jurassic Park, Star Wars and more! The app listens to the movie, using your device's microphone, and automatically synchronizes the commentary to play along with perfect timing. Presto! That movie is now a comedy smash.

Check here for our list of compatible RiffTrax titles!

Get into RiffTrax and start watching movies in a whole new way!

Known Issues
- Bluetooth speakers cannot be used.
- An iOS bug causes progress bars to freeze sometimes, but downloads still complete.

What’s New

Version 2.2

Stability release. Bug fixes.

Ratings and Reviews

3.5 out of 5
49 Ratings

49 Ratings

bluemeanieface ,

Cool App for Riff Heads

Unlike negative trolls of this world who rejoice when things go wrong, I had no problems syncing audio to the first line of movie dialogue. Yeah it would be ideal to sync from the beginning so I could hear the guys jest around the credits and opening theme but it is still a wee marvel that it syncs at all simply through recognizing sound waves. Wee marvel was Mike Nelson's nickname in college.

Nice new feature shows you latest free offers so you can see how it works before you blow $4 on a Star Wars title or whatnot. After 11 years of post MST3K riffing, the riff catalogue is vast with all sorts of genres and riffmaster combinations so beware the rabbit hole when you finally learn to shut up while it's trying to sync.

The big problem keeping this from being 5 star review - and I know the programmers are reading so GBTW - this is the only audio app on iOS that DOES NOT USE SYNCED BLUETOOTH DEVICES. I can sync up a speaker or headset that could blare music just fine but the rifftrax riffs come through the phone speaker and headphone jack only. :( Hammer that out and this will be the greatest tool to sass movies the universe will ever know.

PatChap ,

Some Rough Spots But Still a Gem

This is one of the most underrated apps in the App Store. It may not be perfect interface-wise but syncing the riffs is a perfect use case for the tech. Also, the content is good and incredibly cheap. A few dollars to turn an otherwise unwatchable movie into a good comedy? Count me in. I think Apple should feature it.

Re-reading my own review I realize this actually sounds like a fake review! So let me just say this: watch the movie 300 with the rifftrax going. You will 100% agree that it is the definitive version of this movie. There aren’t many apps that possess the ability to utterly transform and elevate the quality of what is already considered premium content. That’s why I think Apple should promote it..

jpwickl ,


I have enjoyed a RiffTrax since 2008. So, when I saw this app last week, I had to download it especially to try out the microphone syncing. Well, being the new year, I got $10 to spend from RiffTrax. So, through the app, I purchase a riff I don’t have. Well, alas, it’s not quite obvious that the app uses iTunes account to purchase even though I was signed into my RiffTrax account. I’ll have to chalk this up to my own stupidity but it would have been nice to know at least like with in app purchases like some apps prominently display in the app description or to at least give you a choice.

Developer Response ,

Hi there! Apologies for the issue. Unfortunately this is in-app purchase behavior in all app platforms; they require you use your app store billing information for the actual purchase. That being said, as long as your signed into the app, it should still sync with your site account/Library. However, we're always looking to improve, and we'll work to find a way to make this more clear throughout the app.


RiffTrax, LLC
48.8 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 12+ for the following:
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Horror/Fear Themes
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
Infrequent/Mild Profanity or Crude Humor
© RiffTrax, LLC
In-App Purchases
  1. Twilight Riff $3.99
  2. The Room (RiffTrax Live Edition) Riff $3.99
  3. Jurassic Park Riff $3.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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