PolyNome: THE Metronome 4+

Improve Practice & Performance

PolyNome Ltd

    • 4.4 • 19 Ratings
    • $14.99
    • Offers In-App Purchases


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 22.04.1

New in 22.04.1: Compound Time Signature toggle; Return to start position in a Playlist; Clear accents/slashes/ties individually

Compound Time Signatures
Technically, 6/8 should be written as two groups of 3x8th notes, with the tempo being related to a dotted quarter note.
Sometimes in music with mixed time signatures, you may want 6/8 to be used as a regular time signature.
To account for the two options, you'll now see a "Compound Sig: ON/OFF" button when adding a time signature that's a multiple of 3 on the numerator.
When adding bars to a Playlist from the Add Items dialog, you must click on the time signature to bring up a pop-up time signature picker with the Compound Sig button. This pop-up picker also contains irregular denominators (in case you're playing music with time signatures like 4/5!!)

Return to start position in a Playlist
In the Playlist controls you'll see an improved interface for defining what should happen when playback is stopped. You can choose to do nothing, to return to the top of the Playlist, to return to the top of the section, or to return to where playback started from.

Clear Accents/Ties/Slashes/etc
Previously, when clicking the Clear button when editing Accents/Slashes/etc, everything on the top line would be cleared. Now, you have the option to clear just the accents, or just the ties, or just the slashes.

Check What’s New in Help for detailed instructions and videos on how to use all these new features.

If you find any bugs, or have requests or questions, please email me - [support@polynome.net](mailto:support@polynome.net)


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

4.4 out of 5
19 Ratings

19 Ratings

Crashcup ,

So, So Much More Than A “Metronome

I am guitarist who encounters/plays some complex “fingerstyle” rhythms (bass and treble clefs that employ different rhythm patterns in the same measures). By permitting me to enter the values of notes in the bass and treble clefs in separate beat lines (essentially like using parallel metronomes) Polynome has transformed the way I analyze and practice a new piece of music. It is simply amazing and I can’t believe I’m only discovering it now!!! I’ve read a couple of the reviews that say it’s over complicated—I am 70 years old, have owne the app for one hour, and I have already transcribed approximately 20 pretty complex measures into a new preset. The complexity derived from the seemingly endless variety of options. It is mind-blowingly amazing. I’m looking a. $150 Boss Dr. Beat metronome I have connected to my mixer and thinking, “Reverb!!” I can, without any reservation say that this is the best app I EVER purchased and/or subscribed to. I enthusiastically encourage anyone who wants to improve his/her rhythm (and who doesn’t?) to take give this app a try. Yes, it does take a few minutes to get under your fingers, but then it’s pretty darn intuitive. I simply can’t rave enough about it. So I will stop. Best of luck in your pursuit of the right beats for you!!

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.

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.

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  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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