Comparison

SoundBow vs Spectrum AUv3 FFT Visualizer

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

Head to head
About

SoundBow

Create music by drawing curves and gestural movements on a clean interface. Record your own sounds, build melodies, and export compositions as audio files. This app offers a unique, interactive approach to music production.

Highlights
  • Drawing-based music creation
  • Gesture-based sound manipulation
  • Record and use own sounds
  • Export compositions as audio
  • Rescale instrument elements
Features
Read full description

SoundBow is a drawing based music instrument with a clean and simple visual interface. You can create music by drawing curves over the screen with lines and gestural movements. Apart from drawing, you can rescale your instrument by moving graphical elements around. Record your own sounds through the microphone and start creating melodies, soundscapes with your own voice. If you wish, you can also export your composition as an audio file. "Touch-based mobile devices allowed interactive, gesture-based music production to hit the masses. So far, this type of musical creation hasn't exactly taken the world by storm. But SoundBow, a drawing-based musical instrument app, should shake things up a little bit with its clean, minimal visual interface and mesmerizing potential for complex, loop-based music production." - The Creators Project "Binaura bring their beautiful SoundBow app to iOS at last. It is a gorgeous instrument with huge possibilities for expression and creativity. I think that in many ways these are the kinds of apps that iOS was made for." - Palm Sounds SoundBow is made with free and open source tools. The interface is built with OpenFrameworks. The sound engine is made with SodaLib, a free Data Sonification Library built on top of libPd (Pure Data).

About

Spectrum AUv3 FFT Visualizer

Features
Read full description

Turn sound into stunning visuals with Spectrum, an AUv3-compatible real-time spectrum analyzer for audio signals. Effortlessly monitor 29 specific frequencies from 10 Hz to 20 kHz with precision, powered by Fast Fourier Transform (FFT) data. Spectrum’s sleek graphics feature vertical markers, filled paths, and a smooth gradient background for an immersive visual experience. Enjoy accurate frequency placement with logarithmic scaling, and interact seamlessly using touch to highlight specific frequencies. Designed for performance, it dynamically adjusts to real-time data, transforms decibels, and ensures smooth, optimized rendering for flawless updates.

Screenshots

SoundBow2 screens
Spectrum AUv3 FFT Visualizer2 screens

Verdict

The call

The clearest difference is update cadence: SoundBow at every 2 months against Spectrum AUv3 FFT Visualizer's every 12 months. SoundBow also leads on iOS requirement (11.0 vs 15.0). Spectrum AUv3 FFT Visualizer's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support 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

SoundBow costs $1.99 and Spectrum AUv3 FFT Visualizer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SoundBow ships an update every 2 months, Spectrum AUv3 FFT Visualizer every 12 months. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
SoundBow versus Spectrum AUv3 FFT Visualizer: the parameters behind the verdict, then further details
ParameterSoundBowSpectrum AUv3 FFT Visualizer
Price$1.99$0.99 — better
Rating4.7 (13 ratings) — better—
Positive reviews63.3% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 months — betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size13 MB10 MB
Age rating4+4+
DeveloperAgoston NagyDiscoDSP LLC

In-app purchases

None

SoundBow

No in-app purchases

None

Spectrum AUv3 FFT Visualizer

No in-app purchases

Questions

Is SoundBow free?
SoundBow costs $1.99, with no in-app purchases.
Is Spectrum AUv3 FFT Visualizer free?
Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.
Do SoundBow or Spectrum AUv3 FFT Visualizer have ads?
Neither SoundBow nor Spectrum AUv3 FFT Visualizer shows ads.
Which is updated more often, SoundBow or Spectrum AUv3 FFT Visualizer?
SoundBow ships an update every 2 months, and Spectrum AUv3 FFT Visualizer every 12 months. Most recently, SoundBow was updated on October 21, 2026 and Spectrum AUv3 FFT Visualizer on October 18, 2026.

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