M2DX vs Nugget 01
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- 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
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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
Verdict
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
Both are free to download. M2DX sells 1 one-off in-app purchase. Nugget 01 asks for nothing beyond the download.
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.
M2DX ships an update every 2 days, Nugget 01 every 2 months. Both last shipped on October 31, 2026.
| Parameter | M2DX | Nugget 01 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 4 |
| Update frequency | Every 2 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Hakaru Hirose | Sketch Audio, LLC |
Customer experience
M2DX
Nugget 01
In-app purchases
M2DX
- M2DX Pro Unlock$9.99
Nugget 01
No in-app purchases








