Comparison

M2DX vs Nugget 01

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

M2DX

Create music with a powerful 6-operator FM synthesizer. Explore hand-crafted presets or import classic DX7 banks. Use the on-screen keyboard or connect MIDI controllers for a versatile music-making experience.

Highlights
  • 6-operator, 32-algorithm FM synthesis
  • On-screen keyboard with velocity control
  • DX7-format .syx bank import
  • 6-stage FX chain
  • AUv3 plug-in support
  • Native MIDI 2.0 support
Features
Read full description

M2DX is a 6-operator, 32-algorithm FM synthesizer for iPhone, built from the ground up in pure Swift 6. Open it and play immediately — tap the built-in on-screen keyboard and start making sound with M2DX's own hand-crafted presets. No external hardware or MIDI controller is required. The FM engine is a bit-exact port of the open-source Dexed / msfa DSP, verified sample-for-sample against the reference. It is also compatible with the classic DX7 patch format: bring your own DX7-format .syx banks and play them alongside M2DX's originals. KEY FEATURES - Built-in on-screen keyboard with velocity and octave control — play standalone, no hardware needed - 6-operator, 32-algorithm DX7-style FM synthesis - M2DX's own original FM presets, plus DX7-format .syx bank import (bring your own) - A 6-stage FX chain: EQ, Drive, Chorus, Reverb, Stereo, Maximizer - Low-latency audio with AVAudioSourceNode direct rendering - AUv3 plug-in — use M2DX as an Audio Unit (AUv3) in compatible hosts OPTIONAL MIDI (not required to use the app) - Connect any MIDI controller over Bluetooth or USB if you have one - Native MIDI 2.0 — UMP with 16-bit velocity and 32-bit controllers - MIDI-CI Property Exchange — patch names appear on compatible controllers (for example, KORG KeyStage) - MIDI Learn for hands-on control MIDI 2.0 done natively, classic FM done faithfully. The FM engine is built on Dexed / msfa (Apache License 2.0). M2DX is an independent product and is not affiliated with, endorsed by, or sponsored by Yamaha Corporation. DX7 and Yamaha are trademarks of Yamaha Corporation. iOS 18 or later.

About

Nugget 01

This audio effect plug-in emulates a classic sampler's compressor, adding warmth, vinyl noise, and drive. It's a free tool for musicians seeking a unique lo-fi sound, usable within compatible music production apps or standalone.

Highlights
  • Detroit-style mix slammer
  • Warm vinyl noise and crackle
  • Drive to clip converters
  • Four sample grades
  • Light or dark color scheme
  • AUv3 effect plug-in
  • Standalone preview
Read full description

Lil' Doc is a compressor effect based on the muscular, vinyl simulator in an early 00s workhorse sampler. It’s a powerful effect that’s found a cult following among lo-fi heads, and rightly so! We first implemented this compression algorithm for our paid plug-in Doctor Vibe, and the sound was so unique, we thought it would be a great first entry in our free plug-in series. Enjoy! Features: - Completely free, no unlock required! - Four controls: - Detroit-style mix slammer - Warm vinyl noise and crackle - Drive to clip the converters! - Four sample grades to choose - Output gain - One-click loudness matching - Light or dark color scheme. Lil' Doc is an AUv3 effect plug-in. For best experience, load the plug-in on an effects slot in a compatible host. You can also preview the effect in the standalone with our new mini-player. Check out our YouTube: https://www.youtube.com/@sketchaudio Visit the site: https://sketchaudio.com/nuggets/lil-doc

Screenshots

M2DX4 screens
Nugget 012 screens

Verdict

The call

The clearest difference is review sentiment: Nugget 01 at 100% against M2DX's 25%. Nugget 01 also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 1). M2DX's advantage is update cadence (every 2 days vs every 2 months). On price, ratings volume, ads and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. M2DX sells 1 one-off in-app purchase. Nugget 01 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Nugget 01 holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 25% of M2DX's written reviews are positive against 100% of Nugget 01's.

UpkeepUpdate frequency

M2DX ships an update every 2 days, Nugget 01 every 2 months. Both last shipped on October 31, 2026.

Scorecard6 real differences · 4 level
M2DX versus Nugget 01: the parameters behind the verdict, then further details
ParameterM2DXNugget 01
PriceFreeFree
Rating4.0 (4 ratings)5.0 (4 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings44
Update frequencyEvery 2 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size16 MB12 MB
Age rating4+4+
DeveloperHakaru HiroseSketch Audio, LLC

Customer experience

M2DX

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive25.0%
Neutral75.0%
Negative0.0%

Nugget 01

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

M2DX

One-time1
  • M2DX Pro Unlock$9.99
None

Nugget 01

No in-app purchases

Questions

Is M2DX free?
M2DX is free to download, with in-app purchases available.
Is Nugget 01 free?
Nugget 01 is free to download, with no in-app purchases.
Which has better reviews, M2DX or Nugget 01?
Nugget 01 is rated higher. M2DX averages 4.0 out of 5 from 4 ratings, while Nugget 01 averages 5.0 from 4 ratings.
Do M2DX or Nugget 01 have ads?
Neither M2DX nor Nugget 01 shows ads.
Which is updated more often, M2DX or Nugget 01?
M2DX ships an update every 2 days, and Nugget 01 every 2 months. Most recently, M2DX was updated on October 31, 2026 and Nugget 01 on October 31, 2026.

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