KORG Module vs Polymeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KORG Module
This app offers professional piano and keyboard sounds for mobile devices. The free version provides access to high-quality piano sounds, with options to unlock more sound libraries and features through in-app purchases or by connecting Korg MIDI controllers.
- High-quality piano and keyboard sounds
- Customizable sound sets with over 30 libraries
- AUv3 support
- Ultra-low latency sound engine
- Unlock sounds with Korg MIDI controllers
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The best sounds, available to everyone. FREE version lets you experience the high-quality piano & keyboard sound. Announcing a new high-quality mobile sound module app for iOS! • KORG Module Pro (Full version): Achieved the #1 position on Ideal for performance and music production, KORG Module is a high-quality sound module app for iOS that contains a professional sound library. With just your iPad/iPhone and a MIDI keyboard such as the KORG microKEY, you can play studio-quality keyboard and grand piano sounds anywhere. FEATURE HIGHLIGHTS ● With just an iPad/iPhone and the new microKEY, you can enjoy great sound anywhere ● Stunningly high-quality piano for free. ● Customize your sound set: Available over 30 sound libraries from the Store page. ● AUv3 support ● Ultra-low latency sound engine ● Unlock additional 4 sounds by connecting Korg MIDI controllers/synthesizers. Check the details from www.korg.com/bundle. More info at https://www.korg.com/products/software/korg_module/ !
Polymeter
This metronome helps musicians practice complex time signatures and changing meters without constant resets. Create custom sequences, save them as songs, and share with bandmates.
- Combine multiple time signatures
- Reorder bars with drag & drop
- Create custom meters
- Save and recall song sequences
- Share songs with other musicians
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Polymeter is a metronome designed for musicians who work with changing time signatures, odd meters, and complex arrangements so you never have to reset your click again. Key Features • Seamlessly combine multiple time signatures (4/4, 3/4, 6/8, 5/4, 7/8, 9/8) into a single continuous sequence. • Reorder instantly: drag & drop bars into the exact order you need • Custom meters: set custom beats + note values,, • Save & recall: save your sequence, title, and tempo as a song and reload anytime • Share a song to fellow musicians or band mates and they’ll be able to open it right in the app. Happy practicing!
Screenshots
Verdict
KORG Module and Polymeter both sit at 4.6 stars, but that hides the real split: 52% of KORG Module's written reviews are positive against 0% of Polymeter's. KORG Module also leads on ratings volume (785 vs 4) and update cadence (monthly vs every 3 months). Polymeter's advantage is monetization model (free vs free with in-app purchases). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. KORG Module sells 21 one-off in-app purchases and Polymeter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for KORG Module against 4.5 for Polymeter. That said, the two scores are not equally well evidenced: KORG Module has 785 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 52% of KORG Module's written reviews are positive against 0% of Polymeter's.
KORG Module ships an update monthly, Polymeter every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | KORG Module | Polymeter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (785 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 51.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 785 — better | 4 |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 1.7 GB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | KORG INC. | Jack Gruber |
Customer experience
KORG Module
Polymeter
Bugs and requests
KORG Module
Reported bugs
4 issues- Purchased sounds disappearing after updates
- Inability to delete individual modules to save space
- Inconsistent behavior with Bluetooth MIDI controllers
- Crashes when using certain expansion packs
Requested features
5 requests- Add virtual pitch bend and modulation wheels
- Improve Gadget integration and availability of IAPs
- Implement AUv3 support for better integration
- Provide a more intuitive and streamlined interface
- Add more instrument categories like brass, woodwinds, and Latin percussion
Polymeter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KORG Module
- 7-day trial:TRITON Best selectFree
- 7-day trial : Organ & ClavFree
- 7-day trial : Module Perf ExpFree
Show 18 moreShow fewer
- 7-day trial : Ivory GrandFree
- 7-day trial : Ivory American DFree
- 7-day trial:Essential CompleteFree
- 7-day trial Hybrid 2Free
- 7-day trial : 80s Dance PopFree
- 7-day Trial : GENERAL 128Free
- 7-day trial : OASYS PianoFree
- 7-day Trial: M1 Best SelectionFree
- 7-day Trial : Wild KitsFree
- 7-day Trial : Neo SoulFree
- 7-day trial : 80's E.PianoFree
- 7-day Trial : Classic EP-88MFree
- 7-day trial : Dreamy SynthsFree
- Hybrid Synth Pack 2$4.99
- Space Western$6.99
- TRITON Best Selection$19.99
- Module Performance Expansion$29.99
- Essential Complete$39.99
Polymeter
- Polymeter Pro$4.99
Questions
Is KORG Module free?
Is Polymeter free?
Which has better reviews, KORG Module or Polymeter?
Do KORG Module or Polymeter have ads?
Which is updated more often, KORG Module or Polymeter?
Other comparisons
