Beat Time plays audio & video and can change the tempo (time stretch) and/or pitch and does note & chord detection. It is aimed as a practice / study tool for musicians and as a helper tool for transcribing audio & video. Play audio & video from your iPod library, dropbox, YouTube, iTunes file sharing or open from other apps.

"Beat Time! is a gem of an app that's just waiting for musicians around the world to discover it. It's almost to good to be true! You've got to check it out!!"
Jordan Rudess
Dream Theater/Wizdom Music.
"I've used plenty of slow downer type apps, and this is among the best! It does what it says and does it well" Evp73
"It's amazing how you can hear virtually NO artefacts in the audio! Amazing!" jenius92000

Main app features:
• Time stretch video and audio from 1/4x to 2x without affecting pitch.
• Pitch shift audio and video up to an octave up or down.
• Natural pitch shifting, pitch shift a male voice keeping it sounding male, pitch shift a female voice keep it sounding female.
• High quality, state of the art, time stretching / pitch shifting using DIRAC technology.
• Pitch analysis for note & chord detection.
• Annotate the track with multiple markers.
• Seamless looping of segments in the track.
• Optionally pause between loops.
• Easy file transfer: Open audio/video files from any app that supports iOS "Open In..." menu.
• Play YouTube videos.
• Open tracks from your iPod audio, video library or video camera roll
• Export time stretched / pitch shifted audio or movies.
• Universal application (iPhone/iPod/iPad).
• Supports video and audio formats that are playable using iOS music/video player, including: mp4, m4v, m4a, mp3, WAV, mov, (AVI provided it's mpeg 4 encoded)

See Jordan Rudess playing with Beat Time! at

What's New

Version 3.2.4

Fix playback of some videos

Ratings and Reviews

4.2 out of 5
16 Ratings
16 Ratings


If you're a musician this is an incredible tool. Easily slow down videos while keeping the sound track in pitch, or change the pitch if you like. This is an app I use often and depend on. I recently had a small issue and reached out to the developer. I received a response and a solution in minutes. Top-notch customer service!


Excellent app for learning!

This app is great for visual learners! Best tool for slowing down videos that I’ve ever found. Great sound quality during slow down. Recent update for moving markers makes it easy to define sections for looping. Integrated with iOS 11 Files app for easy importing/exporting.


Hands down essential tool

This app is my #1 tool for rehearsing. Developer responds almost immediate and resolves any issue that seldom pop up. Can’t do without, I’ve tried most of the other free/low cost transposing/transcribing apps out there and Beat Time remains superior.


Guy Shaviv
20.8 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Unrestricted Web Access
© Tiv Studio


  • Family Sharing

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

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