Comparison

milliVerb vs Harmonauta

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

Head to head
About

milliVerb

Transform your iPhone or iPad into a professional reverb processor for live audio. Shape rich algorithmic spaces in real-time, visualize your reverb with a spectral display, and control parameters with MIDI. Ideal for musicians and vocalists seeking immersive sound.

Highlights
  • Real-time reverb shaping
  • Spectral display visualization
  • MIDI control and tempo sync
  • Live audio processing
  • Feedback cancellation
  • Customizable presets
Features
Read full description

milliVerb turns your iPhone or iPad into a real-time reverb instrument for voice, instruments, and other live sound. Shape the effect as you play with hands-on controls designed for performance. • Build a space with expressive reverb and modulation controls. • Shape tone with a visual EQ, including filters and adjustable bands. • Tune low-, mid-, and high-frequency decay independently. • Use adaptive feedback EQ to reduce persistent resonances. Feedback depends on the room, speakers, microphone, and volume; protection cannot guarantee that feedback will never occur. • Record a dry take on demand, then audition it with reverb and adjust the mix. milliVerb’s live processing, recording, playback, and factory presets are free to use without a session timer. milliVerb Full is an optional one-time purchase that unlocks dry WAV saving, processed-mix export, and custom presets, favorites, and performance sets. Restore a previous purchase in Settings. Recording starts only when you tap Record. Takes are stored in the on-device Recordings library. Exporting or sharing is initiated by you.

About

Harmonauta

Features
Read full description

Harmonauta is a music maker for songwriters that starts where songs actually start: with a feeling. Instead of scales, wheels and chord tables, you get a living galaxy of sixteen emotions. Tap Longing, add a little Joy, pull Serenity closer, and the Core hums the key it hears. Forge it, and Harmonauta lays out a chord progression that carries that feeling: the right mode, the right movement, the right extensions, voiced and played back so you can judge it by ear. Then keep shaping. FORGE A TONE • Blend up to four emotions and weight them by dragging them toward the Core • Progressions built from a library of emotional archetypes across seven modes • Depth control: Pure triads, Rich sevenths, or Lush ninths and colour tones • Feel control: hold, pulse, strum, picked or piano comping, plus tempo and key • Genre: Pop, Rock, Hip-hop, R&B, Electronic, Folk, Jazz, Lo-fi, Bossa nova, MPB, Reggae or Blues, or let the feeling decide • A melody line written over your chords, shown as a piano roll, rerollable • Reroll for another take on the same feeling HEAR IT PROPERLY • Ten instruments (pad, glass keys, pluck, electric piano, nylon guitar, crunch guitar, organ, bells, strings, flute) and three basses • Drums with sixteen grooves, from a soft pulse and bossa to boom bap, swing, samba, one drop, four on the floor and a blues shuffle • Bass lines that play a real part: a pedal under calm, lush chords, root and fifth, octaves when it gets loud, a walking line through the key; genres bring their own, from a blues boogie to samba and bossa • Five spaces from dry to cathedral and plate • Binaural beat for headphones: a quiet tone in each ear around the key note, pulsing in time with the song • The screen stays awake while anything is playing • Auto picks all of it from the feeling or the genre; override anything in the Sound sheet RESHAPE ANY CHORD • Shards: smart substitutions for every chord, from relative minors and mediants to secondary dominants, tritone subs and borrowed colour • Change chord lengths, add and remove chords • See the guitar shape for every chord, with alternatives one tap away GROW IT INTO A SONG • The Journey builds an intro, verse, pre-chorus, chorus, bridge and outro from your seed • Tint any section with a different feeling and Harmonauta rewrites its harmony to match • Reorder, duplicate, repeat and regenerate sections • Play the whole arrangement end to end; the trail scrolls itself to the section being played TAKE IT WITH YOU • Guitar sheet PDF: chord diagrams above every bar, fingerings, barres, positions • MIDI export for any tone or full song with chord, bass line, melody and drum tracks, ready for your DAW • Copy a chord sheet as text • A library that remembers every tone and song with its mood Harmonauta is built for songwriters, composers, producers and anyone who has a feeling before they have a chord. It runs entirely on your device, with no account and no internet required.

Screenshots

milliVerb4 screens
Harmonauta4 screens

Verdict

The call

The clearest difference is in-app purchases: Harmonauta at none against milliVerb's 1. Harmonauta also leads on update cadence (every 4 days vs weekly). On price, ads, device support and iOS requirement 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. milliVerb sells 1 one-off in-app purchase. Harmonauta asks for nothing beyond the download.

UpkeepUpdate frequency

milliVerb ships an update weekly, Harmonauta every 4 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
milliVerb versus Harmonauta: the parameters behind the verdict, then further details
ParametermilliVerbHarmonauta
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperAngelo MilliEvandro Guedes Machado

In-app purchases

1 purchases

milliVerb

One-time1
  • milliVerb Full$4.99
None

Harmonauta

No in-app purchases

Questions

Is milliVerb free?
milliVerb is free to download, with in-app purchases available.
Is Harmonauta free?
Harmonauta is free to download, with no in-app purchases.
Do milliVerb or Harmonauta have ads?
Neither milliVerb nor Harmonauta shows ads.
Which is updated more often, milliVerb or Harmonauta?
milliVerb ships an update weekly, and Harmonauta every 4 days. Most recently, milliVerb was updated on October 29, 2026 and Harmonauta on October 31, 2026.

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