Amazing Slow Downer

Amazing Slow Downer

By Roni Music

  • Category: Music
  • Release Date: 2009-03-27
  • Current Version: 6.1.2
  • Adult Rating: 4+
  • File Size: 6.94 MB
  • Developer: Roni Music
  • Compatibility: Requires iOS 9.0 or later.
Score: 4.5
From 477 Ratings


If you're a musician who likes to learn new songs and techniques by listening to the same piece of music over and over but wish that the music could be played a little slower, then you'll enjoy Amazing Slow Downer. You can repeat any section of the music at full speed, slow it down or even speed it up by changing the speed between 25% (1/4 of original speed) and 200% (double speed) without changing the pitch! Change the tuning or musical key? No problem, Amazing Slow Downer handles that as well. Setup seamless loops by touching the "Set" buttons during playback. Amazing Slow Downer is the ideal tool for any musician, transcriber or dancer wanting to improve their skills. Important notes: Cannot play DRM protected files from the iTunes store (m4p and audio book files).



  • Greedy company lacks re-download

    By dcb-111
    I switched to a new phone after purchasing the app for $15 and reached out to roni music to see if I could download the app on my new phone. They said no!! One star for greed! I already paid for the app why would switching devices make a difference? Simply deactivate the old app! Find another slow down app that actually cooperated with its paying customers!
  • It truly is Amazing!

    By afarmerguitar
    I think this is the first review I have ever written. Normally I wouldn’t go out of my way, but this app has truly revolutionized the way I teach and practice. Everyone who plays an instrument needs this app! Also, a couple of days ago, I was having trouble with the app, which was probably due to Spotifys servers being down. I emailed the company and got a quick response and shortly the problem was fixed. It was at that moment, I realized how much I depend on this app! Worth everything you pay and more!
  • Should’ve brought earlier

    By Jkels1
    I brought to listen to my music like the do in Texas, slowed and screwed. Pitch and tempo match made in heaven
  • “Failed to collect songs”

    By Size Matters
    Hit or miss with Spotify connection. Cool app, but unreliable functionality is unacceptable especially when using it for teaching purposes.
  • Great for Irish trad music!

    By emeraldcitystar
    Why did I not buy this app years ago... perfect for slowing down fast session recordings to get those five pesky notes you can't un-jumble at speed. Highly recommend!
  • Perfect

    By buhlacious
    RONI is amazing. Responds quickly. Great customer service. Great app. Thanks!!! This is so beneficial. Thanks for taking shed time to build the features.
  • Life saver

    By Robby2011
    Every collaborative pianist needs this. Get it. You kill two birds with one stone by learning your part with careful practice while simultaneously learning your partners parts aurally. I just wish the app was more fun to look at.
  • Daily use as a guitarist!

    By alogonss
    This app is simply ... “Amazing”. I use it constantly to slow down difficult Guitar passages AND then loop them so I can practice long or short sections. It is perfect for learning solos or riffs with difficult timing. The sound quality is terrific though (as another reviewer mentioned) some distortion becomes audible at very slow speeds, but it is not intense distortion and doesn’t prevent hearing what you are trying to learn. Because I am using either MP3 or AAC, I’m sure the distortion is due to file compression. Having said that, there is zero doubt that I am a better guitarist because of this app. I would buy it again in a heartbeat due to its ease of use and solid feature set!
  • Waste of money, unfortunately.

    By CrenshawE
    I finally bought the program and attempted to open a song through my iTunes...low and behold, unable because of DRM on every tune in my library. Thank Apple:-(
  • iPhone ASD - Just What I Needed

    By rleemartin
    I’ve had ASD app on my MacPro for many years and use it daily but have to cart it around when not at home. This app for iPhone couldn’t be better. Now I have ASD in my pocket wherever I go!