Comparison

HarmonyWiz vs Fuzz Droid

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

Head to head
About

HarmonyWiz

This app generates multi-part harmony from a single musical line, offering harmonic analysis and figured bass notation. It includes editing tools, preset sound ensembles, and supports various harmonic styles. It's suitable for all ages, from beginners to professionals.

Highlights
  • Multi-part harmony generation
  • Harmonic analysis and figured bass
  • Expert editing tools
  • Multiple harmonic styles
  • Built-in and MIDI keyboards
  • SoundCloud sharing
Features
Read full description

HARMONYWIZ is an advanced harmonic generator which can create multi-part harmony, all just from inputting a single musical line. You can paint your music in or play it from a piano style keyboard. You compose it and HarmonyWiz will arrange it! After an arrangement is created, the app provides harmonic analysis and displays a notation system known as Figured Bass. Enter the Expert mode and you will have access to manage all the tracks in your arrangement with our editing tools. Select different preset sound ensembles or create your own. HarmonyWiz. Entertaining and fun for all ages, but also a valuable educational tool for music students and can be used for advanced editing by industry professionals. This release of HarmonyWiz features the Baroque style and some of Jordan’s personal variations on its classical foundation. The sounds in HarmonyWiz are from Jordan’s personal library. We also offer a great collection of additional sounds as In-App- purchases. One can also enjoy just playing the great sounds of HarmonyWiz from the onboard or midi keyboard • HarmonyWiz offers a unique, assisted composition engine • Place guide notes in any track including the melody or bass lines • Force chords to have certain degrees or inversions • Choose from five different harmonic styles: Baroque, Contemporary, Smooth, Free, And Open • Non-harmonic tones such as passing notes or suspension notes • Built in multi-touch keyboards in both chromatic layout and harmonic • Supports the use of accidentals • Supports simple and compound meters • Supports major and minor keys • Displays harmonic rhythm • Multiple undo and redo • MIDI in and MIDI out support • AudioBus support • AudioShare support • Ten built-in instruments including orchestral and electronic sounds • More instrument packs available for in-app purchase • SoundCloud sharing IMAGINARY PRAISE FOR HARMONYWIZ: “I wrote my first composition at age four. Too bad I didn’t have HarmonyWiz so that I could’ve had an even earlier start.” Wolfgang Amadeus Mozart “HarmonyWiz is a great tool for composers like myself. If I had HarmonyWiz when I was a young man, I could have composed a symphony every day.” Ludwig van Beethoven REAL PRAISE FOR HARMONYWIZ: “HarmonyWiz is such a fun and awesome compositional tool! Perfect for helping any musician unlock and explore endless creative harmonic possibilities. It’s practically like having your own digital writing partner at your fingertips. The only problem for Jordan, is that if he keeps this up, he may just “tech” himself right out of a job! John Petrucci (Guitarist of Dream Theater) ABOUT THE CREATORS: Jordan Rudess explains, I always felt that a composer’s thought process would be fascinating to capture in code. I’ve wanted to do an app like this for a long time and, upon meeting developer, Ruben Zilibowitz, it finally has become possible. Ruben has spent years studying classical music texts such as Schoenberg's Theory of Harmony. He started by writing out four-part phrases by hand. Eventually, he was able to translate this process into computer code that could generate natural musical phrases. Through hours of sitting at the piano, studying my own compositional method, to Ruben’s tireless coding we believe we have achieved something truly unique and inspiring. If you have any feedback/questions concerning HarmonyWiz, please send them to us at support@harmonywiz.com. We will get back to you promptly. Note: We cannot respond directly on the App Store review page.

About

Fuzz Droid

This app provides a powerful distortion effect inspired by a modular mixer's gain stage, offering hyper-aggressive sounds with massive harmonics. It features two distinct distortion circuits, advanced tone-shaping, and morphing capabilities for dynamic sound transitions.

Highlights
  • Two asymmetric distortion circuits
  • Custom smoothing function
  • Flexible tone-shaping filters
  • Morph settings for transitions
  • Auto bypass for CPU saving
  • HQ mode with 4x oversampling
  • Light and dark interface modes
Read full description

Fuzz Droid is a distortion effect based on the gain stage in the CP3 modular mixer. A sharp, asymmetric discontinuity generates massive harmonics and makes for a hyper-aggressive sound. It's the rudest effect we've ever made. Crunch It! - Two asymmetric distortion circuits from the OG CP3 module - CP3+: a sharp discontinuity for big harmonics, absolutely brutal on synth drums - CP3-: smooth and heavy, for when the positive curve is too rude - Drive up to +48 dB Digital Extras - Custom smoothing function tames harsh artifacts - Bias control shifts how you hit the asymmetry - Flexible high-pass and low-pass tone-shaping filters - Pre or post filter placement Core Features - Morph Settings for smooth transitions between two complete configurations - Auto Bypass saves CPU when input is silent - AB settings comparison - HQ mode with 4x oversampling and ADAA - One-click loudness matching - All parameters automatable with precise playback - Light and dark interface modes - Internal undo/redo - Auto gain - Standalone app includes support, manual links and in-app purchase options for license purchase Two-week trial included, one-time purchase for full unlock. Unlock your plug-in via in-app purchase from the standalone app or activate in the plug-in using an existing desktop license. Your in-app purchase activates the plug-in on all of your iOS devices. Owners can claim a crossgrade code in the standalone app to receive a discount on a desktop license. Check out our YouTube: https://www.youtube.com/@sketchaudio Read the manuals: https://sketchaudio.com/manuals/

Screenshots

HarmonyWiz4 screens
Fuzz Droid2 screens

Verdict

The call

The clearest difference is price: Fuzz Droid at Free against HarmonyWiz's $9.99. Fuzz Droid also leads on rating (5.0 vs 4.5) and update cadence (every 6 weeks vs every 3 months). HarmonyWiz's advantage is iOS requirement (9.2 vs 14.0). On ratings volume, ads, in-app purchases 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

Fuzz Droid is free to download; HarmonyWiz costs $9.99 up front. HarmonyWiz sells 5 one-off in-app purchases and Fuzz Droid sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fuzz Droid holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

UpkeepUpdate frequency

HarmonyWiz ships an update every 3 months, Fuzz Droid every 6 weeks. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
HarmonyWiz versus Fuzz Droid: the parameters behind the verdict, then further details
ParameterHarmonyWizFuzz Droid
Price$9.99Free — better
Rating4.5 (4 ratings)5.0 (3 ratings) — better
Positive reviews69.0% of reviews—
Number of ratings4 — better3
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.2 — better14.0
Further details — not scored
Size137 MB12 MB
Age rating4+4+
DeveloperWizdom Music LLCSketch Audio, LLC

Customer experience

HarmonyWiz

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews58 reviews
Positive69.0%
Neutral12.1%
Negative19.0%

Fuzz Droid

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

HarmonyWiz

One-time5
  • Synth pack 1$0.99
  • Guitar pack$0.99
  • Synth pack 2$0.99
Show 2 more
  • Wizdom acoustic 1$0.99
  • Wizdom acoustic 2$0.99
2 purchases

Fuzz Droid

One-time2
  • Two-week TrialFree
  • Full Unlock$2.99

Questions

Is HarmonyWiz free?
HarmonyWiz costs $9.99, and also offers in-app purchases.
Is Fuzz Droid free?
Fuzz Droid is free to download, with in-app purchases available.
Which has better reviews, HarmonyWiz or Fuzz Droid?
Fuzz Droid is rated higher. HarmonyWiz averages 4.5 out of 5 from 4 ratings, while Fuzz Droid averages 5.0 from 3 ratings.
Do HarmonyWiz or Fuzz Droid have ads?
Neither HarmonyWiz nor Fuzz Droid shows ads.
Which is updated more often, HarmonyWiz or Fuzz Droid?
HarmonyWiz ships an update every 3 months, and Fuzz Droid every 6 weeks. Most recently, HarmonyWiz was updated on October 15, 2026 and Fuzz Droid on October 8, 2026.

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