Comparison

MESA Synth AUv3 vs Harmonaut

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

Head to head
About

MESA Synth AUv3

This music creation tool transforms visuals into sound by rendering shaders and images into wavetables. It offers a powerful synthesis engine, extensive sound-shaping capabilities, and a full effects rack, all controllable through light and visual input.

Highlights
  • Visual-to-audio wavetable synthesis
  • Unison oscillator stack with sub-oscillator
  • Zero-delay-feedback filter
  • Vision panel for sound shaping with light
  • 26 stackable visual modifiers as audio effects
  • 8-stage stereo FX rack
  • Sampler mode with auto pitch-tracking
Features
Read full description

MESA is a wavetable synthesizer unlike any other — it turns visuals into sound. Drop in a shader or a .vkograph and MESA renders it offscreen, reads the light across the image, and turns that into a wavetable you play. The picture literally becomes the oscillator — and the same visual keeps living behind your keys, reacting to every note. No other synth works like this. Behind the magic is a complete, serious instrument: THE ENGINE • 64-frame wavetables, FFT mip-banked for clean, alias-free playback everywhere • Unison oscillator stack with detune, spread, and a sub-oscillator • Zero-delay-feedback filter — cutoff, resonance, drive, self-oscillating • Full ADSR envelope, portamento glide, and a dedicated pitch envelope SHAPE THE SOUND WITH LIGHT • Vision panel: choose the scanline, weight color channels, bend the brightness curve, sweep time — one shader, a thousand timbres • 33 color palettes that reshape the tone, not just the look • VFX chain: 26 stackable visual modifiers, each one also an audio effect A FULL STUDIO • 3-slot modulation matrix with 2 LFOs, velocity, and mod wheel • 8-stage stereo FX rack: tape, wow & flutter, chorus, delay, reverb, lo-fi, tape-stop • Sampler mode — load any audio, auto pitch-tracked across the keys • Arpeggiator, Ableton Link, and MIDI Learn on nearly every control BUILT FOR YOUR WORKFLOW • AUv3 plug-in AND standalone app — one purchase, iOS + macOS • iCloud sync — build a patch on your Mac, it's ready on your iPhone • Categorized preset browser with import/export and full patch recall

About

Harmonaut

Create music by feel without needing music theory. This app generates rich chords and smooth progressions, allowing you to shape the mood with intuitive controls. Save and reorder your musical ideas effortlessly.

Highlights
  • Play by feel, no theory required
  • Shape mood with tension and brightness faders
  • Smooth voice leading for flowing progressions
  • Chords named for musicians
  • Save and reorder progressions
  • Works on iPhone and iPad
Features
Read full description

Harmonaut™ is a chord instrument you play by feel. Press a key and hear a rich chord, voice-led smoothly from the last one, no theory needed. Build a progression, shape its mood, and export it as MIDI for your track. Two faders let you shape the mood as you play: more tension or less, brighter or darker, even major to minor. Chase a moody electronic progression, a warm lo-fi loop, a jazzy turn, a cinematic swell, or a simple pop hook. It all comes from your intent, not from naming chords. HOW IT PLAYS • Tension that actually resolves: chords that lean, pull home, and land, so your progression goes somewhere instead of just floating • Every one of the twelve keys is in play: reach past the obvious chords for richer, more surprising color, and it still sounds right • Build a whole progression, not just four chords: every chord you play lands in your trail, ready to reorder or duplicate to try new versions in seconds • Pick up right where you left off: your ideas are saved for you TAKE IT TO YOUR TRACK • Export any progression as a MIDI file and drop it into BandLab, GarageBand, or any DAW that opens MIDI, then play it through any instrument you like • Export to iReal Pro format to keep a chord chart or practice over the changes • Harmonaut Pro unlocks MIDI export, iReal Pro export, and unlimited saved progressions IT SOUNDS GOOD FOR A REASON Every chord is voice-led from the one before it, live, as you play: the notes move the shortest way, so a progression flows instead of jumping around. That's the finished feeling you hear in the songs you love. Push Intensity and the voicings open up: lush 9ths, bright 13ths, and altered dominants like G7#9b13, the colors session keyboard players reach for. And Harmonaut names every chord the way musicians actually write it, like Ebmaj7, so you can hand your progression to a session player, a bandmate, or a producer and they'll play it back exactly, first time. No box to buy, nothing to charge, no menus to dig through. It's already in your pocket. Whether it's your first progression or a sound you can hear but can't name, Harmonaut meets you where you are. See the end user license agreement at the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MESA Synth AUv34 screens
Harmonaut4 screens

Verdict

The call

The clearest difference is price: Harmonaut at Free against MESA Synth AUv3's $8.99. Harmonaut also leads on update cadence (every 10 days vs every 2 months) and ratings volume (6 vs 1). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Harmonaut is free to download; MESA Synth AUv3 costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MESA Synth AUv3 against 5.0 for Harmonaut. That said, the two scores are not equally well evidenced: Harmonaut has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

MESA Synth AUv3 ships an update every 2 months, Harmonaut every 10 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
MESA Synth AUv3 versus Harmonaut: the parameters behind the verdict, then further details
ParameterMESA Synth AUv3Harmonaut
Price$8.99Free — better
Rating5.0 (1 ratings)5.0 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings16 — better
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.417.0 — better
Further details — not scored
Size10 MB117 MB
Age rating4+4+
DeveloperJuan MaguidDistrict One Mobile, LLC

Customer experience

MESA Synth AUv3

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Harmonaut

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MESA Synth AUv3

No in-app purchases

None

Harmonaut

No in-app purchases

Questions

Is MESA Synth AUv3 free?
MESA Synth AUv3 costs $8.99, with no in-app purchases.
Is Harmonaut free?
Harmonaut is free to download, with no in-app purchases.
Which has better reviews, MESA Synth AUv3 or Harmonaut?
MESA Synth AUv3 and Harmonaut are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do MESA Synth AUv3 or Harmonaut have ads?
Neither MESA Synth AUv3 nor Harmonaut shows ads.
Which is updated more often, MESA Synth AUv3 or Harmonaut?
MESA Synth AUv3 ships an update every 2 months, and Harmonaut every 10 days. Most recently, MESA Synth AUv3 was updated on October 13, 2026 and Harmonaut on October 8, 2026.

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