Comparison

Transposer Pro vs FAC Fizzica

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

Head to head
About

Transposer Pro

Features
Read full description

This app is designed to show how a note written for a given instrument (e.g. a Clarinet in Bb) would be written on another instrument (e.g. a Horn in F). - Intended for music students, conductors, composers and anybody who wants to get quicker at reading scores - Choose from over 100 instruments to transpose - many with configurable keys and clefs - Use the slider to interactively see the result of the transposition - Includes info on instrument ranges and transposition properties - Supports 4 clefs (automatically selected based on instrument conventions and register) - Includes guidance on the fundamentals of reading transposing instruments - Supports dark and light themes

About

FAC Fizzica

This app infuses audio with dynamic digital textures and movement through audio-rate modulation. It features an integrated envelope follower for expressive sound shaping and supports various modulation sources for unique sonic transformations. Optimize your workflow with an intuitive XY control pad and visual spectrum display.

Highlights
  • Digital texture infusion
  • Integrated envelope follower
  • Audio-rate modulation
  • Sidechain support
  • XY control pad
  • Spectrum display
  • MIDI control
Features
Read full description

• Infuse your sound with digital artifact textures • Integrated envelope follower for dynamic sound expression • Supports noises, oscillators, and internal/external audio modulation models • Side mix control to balance between fully processed signal and sidebands • Sidechain support: external envelope follower and audio model • Optimized workflow with an easy-to-use XY control pad • Spectrum display of the output signal • MIDI control: Envelope via CC, main frequency and filter cutoff via notes • Extended version of FAC Punchlab's Fizz module • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro Infuse your sound with dynamic digital textures and movement using audio-rate modulation. FAC Fizzica extends FAC Punchlab's Fizz module, maintaining its intuitive design while introducing advanced features for extensive sound shaping. FAC Fizzica is your go-to solution for achieving a vintage lo-fi aesthetic and enhancing audio by adding digital noise artifacts that dynamically respond to your audio input. Ideal for refining basslines, pads, drum loops, and any elements requiring organic and expressive transformations. The plugin offers dynamic expression thanks to its envelope follower, an essential processor in sound design that effectively transforms static sounds into dynamic motion. The envelope follower can monitor the audio input, the sidechain input, a dedicated automatable parameter, or a MIDI CC message. You can adjust the modulation depth for each controlled parameter, precisely controlling how the envelope affects them. To provide a wide variety of textures and timbres, the plugin offers several models. The noise models introduce noisy artifacts, while the sine and triangle models enhance harmonic and tonal richness reminiscent of FM synthesis or RM modulation. The final models allow the use of either the internal or external audio signal (sidechain) as a modulator to affect your carrier signal, offering an interesting method to subtly blend the characteristics of one sound with another. Another standout feature of FAC Fizzica is the sideband control, which adjusts the balance between the processed signal and the isolated sidebands generated by the audio rate modulation. At maximum, only the sidebands are audible! Additionally, a built-in low-pass filter refines the tonal color of the digital textures. The workflow is optimized for simplicity and intuitiveness, featuring a central XY control pad for precise control, accompanied by a detailed visual representation of the envelope signal and all the modulations. Additionally, a spectrum viewer displays the audio output, providing clear visual feedback as you craft your audio to perfection. The plugin comes with two extensions, both audio effects, but the second one also supports MIDI input to control the main frequency and the filter cutoff with MIDI notes, as well as the envelope follower with MIDI CC messages. This is an AUv3 Effect and requires a compatible host to work The documentation is available at fredantoncorvest.com/FAC_Fizzica.html

Screenshots

Transposer Pro4 screens
FAC Fizzica3 screens

Verdict

The call

The clearest difference is price: Transposer Pro at $0.99 against FAC Fizzica's $9.99. Transposer Pro also leads on in-app purchases (none vs 3). FAC Fizzica's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 16.3). On update cadence and ads 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

Transposer Pro costs $0.99 and FAC Fizzica $9.99 up front. FAC Fizzica sells 3 one-off in-app purchases. Transposer Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Transposer Pro ships an update every 11 months, FAC Fizzica every 7 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Transposer Pro versus FAC Fizzica: the parameters behind the verdict, then further details
ParameterTransposer ProFAC Fizzica
Price$0.99 — better$9.99
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 11 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.313.0 — better
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperMatt WelchFrederic Corvest

In-app purchases

None

Transposer Pro

No in-app purchases

3 purchases

FAC Fizzica

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$14.99

Questions

Is Transposer Pro free?
Transposer Pro costs $0.99, with no in-app purchases.
Is FAC Fizzica free?
FAC Fizzica costs $9.99, and also offers in-app purchases.
Do Transposer Pro or FAC Fizzica have ads?
Neither Transposer Pro nor FAC Fizzica shows ads.
Which is updated more often, Transposer Pro or FAC Fizzica?
Transposer Pro ships an update every 11 months, and FAC Fizzica every 7 months. Most recently, Transposer Pro was updated on November 8, 2026 and FAC Fizzica on October 30, 2026.

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