Comparison

Spectrum AUv3 FFT Visualizer vs Tone Gen Studio

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

Head to head
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.

About

Tone Gen Studio

Generate precise audio frequencies, conduct sweep tests, and analyze sound with a built-in microphone tuner and RTA analyzer. This toolkit is designed for musicians and audio engineers needing accurate tone and measurement tools.

Highlights
  • Pure tone generator with custom frequency
  • Preset tone pads
  • Sweep generator
  • Noise profiles (white, pink, brown)
  • Binaural beats
  • Mic tuner with real-time display
  • RTA analyzer
Features
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Test speakers, find frequencies, tune instruments, and keep time during practice with Tone Gen Studio. Generate tones, sweeps, and noise, explore your microphone input with the tuner and spectrum analyzer, or practice with the built-in metronome. Tone generation and speaker testing - Set a custom frequency or choose a preset tone pad. - Select sine, square, sawtooth, or triangle waveforms. - Run linear, exponential, or stepped frequency sweeps. - Generate white, pink, and brown noise. - Set burst on and off durations for pulsed tones. - Adjust binaural carrier and beat frequencies for headphone playback. Tuning and audio analysis - View the detected note, frequency, and cents with the microphone tuner. - Explore input levels with a real-time spectrum analyzer and 1/3-octave RTA bands. Metronome and practice - Set a tempo from 20 to 300 BPM or use tap tempo. - Choose time signatures, subdivisions, accents, and five click sounds. - Practice with swing, polyrhythms, gradual tempo ramps, and random mute. - Use a count-in and practice timer. Start at a low volume and adjust gradually. Binaural playback requires headphones. Speaker response and microphone measurements depend on your device and connected audio equipment. For musicians, audio engineers, educators, and anyone working with sound on iPhone and iPad.

Screenshots

Spectrum AUv3 FFT Visualizer2 screens
Tone Gen Studio4 screens

Verdict

The call

The clearest difference is update cadence: Tone Gen Studio at every 6 weeks against Spectrum AUv3 FFT Visualizer's every 12 months. Spectrum AUv3 FFT Visualizer's advantage is iOS requirement (15.0 vs 18.6). On price, 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

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

UpkeepUpdate frequency

Spectrum AUv3 FFT Visualizer ships an update every 12 months, Tone Gen Studio every 6 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Spectrum AUv3 FFT Visualizer versus Tone Gen Studio: the parameters behind the verdict, then further details
ParameterSpectrum AUv3 FFT VisualizerTone Gen Studio
Price$0.99$0.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 12 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size10 MB5 MB
Age rating4+4+
DeveloperDiscoDSP LLCScott Manley

In-app purchases

None

Spectrum AUv3 FFT Visualizer

No in-app purchases

None

Tone Gen Studio

No in-app purchases

Questions

Is Spectrum AUv3 FFT Visualizer free?
Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.
Is Tone Gen Studio free?
Tone Gen Studio costs $0.99, with no in-app purchases.
Do Spectrum AUv3 FFT Visualizer or Tone Gen Studio have ads?
Neither Spectrum AUv3 FFT Visualizer nor Tone Gen Studio shows ads.
Which is updated more often, Spectrum AUv3 FFT Visualizer or Tone Gen Studio?
Spectrum AUv3 FFT Visualizer ships an update every 12 months, and Tone Gen Studio every 6 weeks. Most recently, Spectrum AUv3 FFT Visualizer was updated on October 27, 2026 and Tone Gen Studio on October 31, 2026.

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