PolyNome is used by the world's top musicians including Peter Erskine, Virgil Donati, Chris Coleman, Vinnie Colaiuta, Dave Weckl, Dennis Chambers and Will Lee.

“PolyNome is great for teaching, practicing and rehearsing. The rhythmic and the subdivision possibilities are endless. Plus, this is the only metronome I’ve used that you can actually LEARN from. Simply brilliant.”

Peter Erskine (Steely Dan, Weather Report, Kate Bush)

PolyNome gives you all the tools you need for practice, teaching, rhythm composing, and live performance. In addition, our free Public Library provides hundreds of user-created Presets and practice routines to inspire you.

Works on your iPhone, iPad, and Mac in both portrait and landscape. You can sync the data between them. It's also designed to run in split-screen mode on an iPad.

Regularly improved and updated with new features.

The PolyNome ‘Pro’ version of this app has all the Pro features already enabled. This version of the app requires an optional subscription to Premium to enable certain features.


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- Practice with full drum grooves
- Program any rhythm, no matter how complex
- Add stickings, flams, drags, accents and rolls to rhythms
- Automate entire practice routines*
- Set goals, schedule your practice, automatically track what you play, and keep notes in the journal*
- Voice count rhythms and time signatures with a couple of taps*
- Generate 2 & 3-way polyrhythms with ease*
- Generate stroke guides for rudiments*
- Add konnakol to any rhythm*
- Shift and randomise stickings and rhythms to generate new exercises and inspire new ideas*
- Enter any time signature (including irrational signatures like 5/6)*
(*premium features)


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- Precise and accurate metronome
- Faders for subdivisions
- 2 fully programmable independent sequencers
- Super fast tempo entry and Tap Tempo
- Variable swing
- Any time signature
- Auto stop with rep counter
- Countdown timer + alarm
- Practice Events are logged. You can add notes to your events
- Subdivisions from whole note to 64th notes with EVERYTHING in between
- Flams, Drags, Ruffs, Diddles, Rolls, Ties, Accents
- Dotted notes
- Haptic pulse
- Audiobus/AirTurn/iRig compatible

PREMIUM FEATURES (available with in-app purchase)

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- Track your practice time. View charts of what you've worked on. Set goals.
- Randomise rhythms and sounds for ear training and groove creation
- Record/Export audio file
- 200+ more sounds, including DrumLine
- 6 Octave Piano Keyboard
- Konnakol entry
- Import setlists from Tempo or Tempo Adv


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- Create band setlists with count-offs and song notes, and generate PDFs
- If you enter the lengths of the songs, PolyNome calculates the set length as you add them!
- Create songs/clicks with multiple tempos or time signatures
- Create nested tuplets
- Create a "Cue Track" by turning on Auto Announce.
- Auto tempo change for quick warm-up/cool-down routines

Voice Counting

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- Advanced voice counting helps you when working on odd-time signatures
- Subdivision counting for 16th notes, triplets, or 8th notes
- Auto-Counting adds correct voice count to your rhythms!

Practice Log

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- View statistics and graphs of your practice time
- Daily Journal for general notes

Random Muting

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- Test your timing with random muting of notes or bars


If you sign up for the optional Premium subscription, payment will be charged to your iTunes account at confirmation of purchase after any free trial. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by you and auto-renewal may be turned off by going to your Account Settings after purchase. Any unused portion of a free trial period will be forfeited when you purchase a subscription to ‘Premium’, where applicable.

What’s New

Version 21.11.7

This update fixes a crash in iOS 14.

If you find any bugs, or have requests or questions, please email me -

Don't forget that Premium members can also join in the regular Live Demo/Q&A sessions. These sessions are an opportunity to learn the deeper features of PolyNome and get your questions answered directly.

If you enjoy using PolyNome and have a few moments to leave a review it's very much appreciated.

Thanks for using PolyNome!

Ratings and Reviews

3.8 out of 5
6 Ratings

6 Ratings

estranged1 ,

Paradigm Shifting Metronome & Metronomic Learning Tool

This app will change your life. On any instrument, it is the perfect companion and there’s no metronome that even comes close. It has any choice of sounds, subdivision overlay faders, two separate rhythm entries plus with two Lines each that can reflect the selected sticking from multiple sounds in each limb, polyrhtmic and counting full screen visuals, online public community library of presets and playlists, playlists that cycle presets and sub presets, setlists, the list goes on, on. The bottom line is if you’re in anyway interested in the world of rhythm, this app is worth every cent. We have a lot to be grateful for from drummer Joe Crabtree, it’s sole developer. Have a new idea or an issue with the app? He’ll hear you out and address it. This app is almost perfect as is, albeit with a relative learning curve that pays dividends (aided by joe’s vast video tutorials linked within the app and beyond). This app will only continue to grow in scope and sweetened layout ergonomics. With this tool, our learning is only limited by our imagination and discipline. Thanks Joe.

Developer Response ,

Thank you for the kind words and glowing review. PolyNome really is my baby, and I’m constantly working to add new features and fine tune the existing ones. I’m so pleased that you’re making good use of it.

LanceGould ,

If you're reading the reviews

Just get the app already. It is quite nice, really. If you just need a basic metronome, it does that. If you want something more, it does that too. Very well. It's had a considerable amount of forethought put into every aspect. From ease of user interface for nubes to intricately involved options for the advanced time-keeping applications. I took all of my old metronome apps off of my new iPhone and installed them on my old iPhone and shot it with my .38 then destroyed what was left of it with hydrochloric acid. As should you. This is the most well maintained, constantly updated, content rich application in the history (and more than likely, the future) of the  app store. It surely is in the Gueniss Book of World Records. Or it should be. When the cyborgenic aliens finally DO annihilate us, this is the one singular human thing they’ll find worthy of not destroying. That’s assuming they don’t chance upon Heroin first, which destroys everything.

PirateJesus ,

Used to love this app

Haven’t been a fan since it was rewritten, and everyone had to pay for the Pro version a second time. I feel like maybe the devs are trying to do too much with it. The interface seems cumbersome. It definitely is not something to use when you just need a simple click, as you have to program in a rhythm before the metronome will even work. Who’s ever heard of a metronome that you can’t just hit Play and go? Also, the app has an inbox? That’s annoying. Is there a way to avoid receiving messages unless they’re of vital importance?

I originally got PolyNome because I wasn’t entirely happy with Tempo Advance’s weird interface. I was perfectly happy with the original version, and I wish the devs would have kept it available with occasional compatibility updates as necessary. The new version makes me consider going back to Tempo Advance. At least it’s equally usable/fast whether you need a simple click or a complex polyrhythm. PolyNome is not worth using unless you’re doing something complex, and have the time to program it.

Developer Response ,

Thanks for leaving a review. I appreciate the feedback.
I’d like to clarify a few things.

- Nobody should have had to pay for Pro a second time. It’s a once only purchase. Please email me at if you feel like you’ve been charged twice.

- When you load PolyNome it has a basic quarter note click as the default. You can hit play and you have a regular metronome. You can also use the faders in the mixer to add in 8th notes or 16th notes like a Dr Beat. If you’ve lost that default you can tap the disk button in the top right to load it and then again to reset it.

- There’s an option in preferences that will load the default when you reopen the app (instead of loading whatever you were last working on). If you use that it’ll always be ready to play a regular click when you launch.

- The inbox allows me to notify you of updates, and send free presets, etc. I’m sorry you find it annoying.

I would genuinely love to speak to you on Skype to find out what kind of things you’d like to do, and how I can help you do them more easily, or tweak future versions of the app to make it more useable.

Please email me at if you’d be happy to chat.

All the best,

App Privacy

The developer, PolyNome Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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