Comparison

iAnalyzer 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

iAnalyzer

This professional audio analysis software uses FFT to examine sound signals on iOS devices. It offers real-time spectrum analysis, precise peak frequency computation, and a unique instrument tuner function. Ideal for musicians and sound engineers seeking detailed audio insights.

Highlights
  • Real-time FFT spectrum analysis
  • Octave and 1/3 Octave display
  • High precision peak frequency computation
  • Instrument tuner function
  • Adjustable playback speed
  • VGA output support
  • Waveform display
Features
Read full description

iAnalyzer is a FFT based professional software to analyze the audio signals for iPhone, iPod Touch and iPad. After 10 years of good sales all over the world, we are glad to see that iAnalyzer has gradually become the industry standard in audio analyze field, due to it's very high quality of course. This is definitely a Must Have app for every musician or sound engineer. We also released the Mac version, you can download it from "Mac App Store". Features: -High performance software design for Real Time Analyzing(RTA) and complex graph displaying. -Works on 44K sample rate, 20~20k Hz frequency output. -FFT spectrum, Octave and 1/3 Octave result display. -Colored curve depend on the dB value. -Flex FFT size, 4K, 8K, or 16K. -Reference Pressure configurable. -2D or 3D or Mix 2D&3D display. -History result display while in 3D mode. -High precision peak frequency computation, average-error lower than 0.1%. -Auto peak frequency tracing, up to 3 peaks can be displayed simultaneously and each one be linked from text to the graph clearly. -Frequency to music scale converter, you can use iAnalyzer as a professional instrument tuner, or to test if any sound is tuneful. -Powerful synthesizer to allow you replay the audio with different speed, from 1/8 to 4x. With this feature, you can listen to your recoding very slowly. (Require iPhone 4S and later, iPad 2 and later which shipped with multiple cores processor.) -VGA output support. Sync display on your device and extern screen. (iPhone 4, iPod touch 4 and iPad required) -Current waveform display and summary waveform display. -Record at any position and red color to mark the latest recording, unlimited recording time. -Play back the recording. -Oscope Auto-Scale: Enable you to view more details for low level signal. -Snap to Peak: Find peak more easily while using measure line. -File Manager: Recording in wave format, create new files, delete exist files, etc. -Wifi Transfer and Data exporting: Download wav files with your browser, including screen shot, FFT result in txt file. -Touch in the result area to use the measure line, bordered label means where is a peak. -Move in the waveform area or touch on the bottom of the area to change the current position, iAnalyzer re-compute and update graph automatically. You can also change the position while playing. Note: -The internal mic of iPhone first generation can only works on 8K sample rate, you need head-set to achieve 44k. -Press "File" button to see the HTTP address, it is in the bottom of the window. -For more information, Please visit http://phyar.cn . How to Use: -Touch and move in the result area with one finger to use the measure line. -Touch and move in the result area with 3 fingers to rotate the 3D graph. -Touch and move in the summary waveform area to move the current position. -Tap in the scroll bar area(bottom of screen) to re-seek the current position. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://phyar.cn/pp/

About

Spectrum AUv3 FFT Visualizer

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

iAnalyzer4 screens
Spectrum AUv3 FFT Visualizer2 screens

Verdict

The call

The clearest difference is price: iAnalyzer at Free against Spectrum AUv3 FFT Visualizer's $0.99. iAnalyzer also leads on update cadence (every 5 months vs every 12 months) and iOS requirement (13.0 vs 15.0). Spectrum AUv3 FFT Visualizer's advantage is in-app purchases (none vs 2). On ads 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

iAnalyzer is free to download; Spectrum AUv3 FFT Visualizer costs $0.99 up front. iAnalyzer sells 2 in-app purchases, starting at $4.99 per month. Spectrum AUv3 FFT Visualizer asks for nothing beyond the download.

UpkeepUpdate frequency

iAnalyzer ships an update every 5 months, Spectrum AUv3 FFT Visualizer every 12 months. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
iAnalyzer versus Spectrum AUv3 FFT Visualizer: the parameters behind the verdict, then further details
ParameteriAnalyzerSpectrum AUv3 FFT Visualizer
PriceFree — better$0.99
Rating4.2 (75 ratings) — better—
Positive reviews40.5% of reviews—
Number of ratings75 — better—
Update frequencyEvery 5 months — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size3 MB10 MB
Age rating4+4+
Developer平 陈DiscoDSP LLC

In-app purchases

2 purchases

iAnalyzer

Subscriptions2
  • iAnalyzer Pro (1 Month)3 Days trial$4.991 Month
  • iAnalyzer Pro (1 Year)3 Days trial$29.991 Year
None

Spectrum AUv3 FFT Visualizer

No in-app purchases

Questions

Is iAnalyzer free?
iAnalyzer is free to download, with in-app purchases available.
Is Spectrum AUv3 FFT Visualizer free?
Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.
Do iAnalyzer or Spectrum AUv3 FFT Visualizer have ads?
Neither iAnalyzer nor Spectrum AUv3 FFT Visualizer shows ads.
Which is updated more often, iAnalyzer or Spectrum AUv3 FFT Visualizer?
iAnalyzer ships an update every 5 months, and Spectrum AUv3 FFT Visualizer every 12 months. Most recently, iAnalyzer was updated on September 24, 2026 and Spectrum AUv3 FFT Visualizer on September 20, 2026.

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