Grooves: Song Speed Changer
🇯🇵 JP LocalizedDescription
SLOW DOWN AND SPEED UP ANY SONG Maybe you’re trying to learn a tricky guitar riff or figure out a new dance routine. Or maybe you want to change the speed of your favourite tracks to lock into the rhythm of your fitness workout. Grooves lets you continuously adjust the speed of any song in the Apple Music catalog, in your iPhone Music Library or Files app to a speed that’s right for you. PICK ANY SONG • Change the tempo of any song on Apple Music, in your Music app or Files app without affecting pitch or fidelity • Access the entire Apple Music catalog of over 100 million songs! • Play tracks from the Files app, including on Cloud Drive, Dropbox and other cloud services • Quick access to your recently played songs ADJUST THE TEMPO • A simple slider for adjusting tempo • Select any tempo from -50% to +100%, in 1% increments • Easily revert to the original tempo with just one tap • Grooves will remember your chosen tempo until you want to adjust it again CREATE SETLISTS • Create unlimited Setlists • Continuous play from one song to the next • Set and remember different tempos for different songs • Combine songs from Apple Music, your Music app and Files app all in the same Setlist • Create Setlists from existing albums and playlists in your Music app or on Apple Music REPEAT JUST ONE SECTION • Select a section of a song and then loop it to make practise easy • Add sections of a song to a Setlist multiple times and then play them back at different tempos APPLE WATCH • Easily control playback, tempo and volume from your wrist AIRPLAY • AirPlay support for output to wireless speakers or Apple TV AND MORE.. • Change the key (transpose up or down) of locally stored DRM-free songs imported into the app or from your Music app. (Missing the pitch controls from the last version? Re-enable them in the Settings app > Grooves. Then swipe left on the album artwork when playing a song) IMPORTANT NOTE! * Songs from streaming services other than Apple Music are not supported *
What's New
Welcome to Grooves! Grooves is the new name for Perfect Tempo. There's also a new app icon and the interface has a refreshed look with Liquid Glass. Grooves will never interrupt you to ask for a review - we don’t like being interrupted either! However, App Store ratings and reviews are important, so if you are enjoying Grooves and have a spare minute, we’d be delighted if you could leave a rating or review on the App Store. Thanks!
Details
- Developer
- Open Planet Software
- Main Category
- Music
- Version
- 37.0
- Version Release
- 2026-05-27
- Initial Release
- 2013-01-23
- Size
- 3 MB
- Age Rating
- 4+
- Price
- USD 4.99
- Languages
- EN
- Bundle ID
- com.openplanetsoftware.highnote
- Version Rating
- ★ 3.70 (93)
- First Seen
- 2026-05-28
Metadata updated 2026-06-14
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User Reviews
[2026.01.31] fully blind user 8+ years using this now for a few months and love it, only tiny complaint is no song lookup by artist, and it’s understandable but I wish there was one like in Apple Music, instead of search
I like the app but it doesn’t suit my needs. I can understand and overlook the slight change in sound when the tempo is adjusted. I can work with that. What I thought it could do was sync the whole playlist to the same tempo. I wanted to use it for a fitness class. But I will just go back to the way I was doing it and live with the slight changes in tempo for each song. If you ever add that feature, I would use it all the time.
Overall these reviews are harsh and don’t seem fair so I wanted to counterbalance. Perfect Tempo has always worked great for me and does just what it says it will do. I do wish it had the ability to transpose as well, but otherwise it works flawlessly and I’ve used it to teach music, practice my own music, and more! Big fan!
I would not have progressed In guitar without this app!
I am a choreographer and use this app every day while teaching. Slow it down a little (or a lot) at first, and gradually bring it up to full tempo. Such a great tool while teaching!
Sounds quality is trash.
Worth every penny. I use this song to learn complex drum parts every day. Being able to pull up a song, select a small portion, then slow it down makes really honing in on a part a breeze. You can also upload your own files, so i have been able to upload tracks for all of my bands so I can easily play through an entire set at once. Love it!
I use this app all the time to learn guitar solos, couldn’t be happier!!!
I’m using this app to casually listen to songs at a sped up tempo for workouts. It works but two things would make it an easy 5 star for me: - Autoplay apple music playlists (not having to manually create a setlist from them, which is extra work to create and maintain) - Default tempo for songs, I want to default to 20% instead of having to manually tweak every single one. The apple music integration is otherwise great! Thank you for making!
I paid 4.99 for something I can just as easily do on YouTube, total waste of money. I don’t like to just be negative so I’ll say that this app has potential but it needs work, the audio compression needs to be better at lower tempos and I think it would be nice to have other effects like maybe down tuning or up tuning ect. Not terrible but like I said you can get this effect on YouTube.
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