Comparison

FFT AUv3 Visualizer vs Guitar Tap

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

Head to head
About

FFT AUv3 Visualizer

This real-time spectral analyzer visualizes audio into spectrograms with high precision. It offers advanced features like mel-scale mapping and intelligent color coding to help musicians and audio engineers analyze sound frequencies for mixing, mastering, and sound design.

Highlights
  • Real-time spectral analysis
  • High-resolution 4096-sample FFT
  • Mel-scale frequency mapping
  • 90dB dynamic range with intelligent color mapping
  • Resizable interface
  • 60Hz display with 75% overlap
Features
Read full description

FFT is a real-time spectral analyzer designed specifically for musicians, producers, and audio engineers who demand precision in their frequency domain analysis. This plugin transforms your audio into visual spectrogram, featuring a high-resolution 4096-sample FFT engine that captures every nuance of your sound. With its advanced Blackman-Harris windowing and mel-scale frequency mapping, FFT provides perceptually accurate frequency representation that mirrors how your ears actually hear music. The plugin offers 90dB dynamic range with intelligent color mapping that highlights different frequency bands—from deep blues for sub-bass through vibrant greens for midrange to warm reds for sparkling highs. Whether you're mixing, mastering, sound designing, or analyzing acoustic spaces, FFT's real-time 60Hz display with 75% overlap ensures smooth, responsive visualization that helps you make critical EQ decisions, identify problematic frequencies, monitor stereo imaging, and understand the spectral content of your tracks with scientific precision. The resizable interface adapts to your workflow, making it an indispensable tool for any serious audio professional seeking to visualize and understand their sound in the frequency domain.

About

Guitar Tap

This app analyzes the resonant frequencies of guitar bodies, tonewood plates, and braces to reveal material properties and structural behavior. It offers detailed measurements for luthiers and wood enthusiasts, with features for comparison, saving, and exporting data.

Highlights
  • Tap-tone analysis for guitars, plates, and braces
  • Detailed resonant peak identification
  • Derives material properties like Young's modulus
  • Multi-tap averaging for noise reduction
  • Comparison of multiple saved measurements
  • Exportable reports and spectrum images
  • On-device processing with no ads or tracking
Read full description

Guitar Tap turns your device into a precision tap-tone analyzer for guitar builders and tonewood enthusiasts. Tap a guitar body, a raw tonewood plate, or a brace, and Guitar Tap captures the ring-out, runs a 65,536-point FFT (about 0.67 Hz resolution), and shows you the resonant peaks that reveal how the structure and material behave. Built around the tap-tone workflow used by luthiers following Trevor Gore's methodology — but approachable enough for any builder curious about what their wood is telling them. THREE WAYS TO MEASURE • Guitar mode — Identify the key structural resonances of a finished body: Air (Helmholtz), Top, Back, Dipole, and Ring modes. Each peak is labeled with its frequency, pitch, Q factor, and bandwidth. See the Tap Tone Ratio and ring-out decay time at a glance. • Plate mode — Measure a rectangular tonewood blank with free-free bending taps. Guitar Tap derives Young's modulus along and across the grain, speed of sound, specific modulus, radiation ratio, and a quality grade — plus a Gore target thickness for your guitar's dimensions. • Brace mode — A fast single-tap measurement of a brace strip's stiffness and quality. FEATURES • Real-time spectrum that freezes automatically the instant a tap is detected • Multi-tap averaging (2–10 taps) to cut noise, with per-tap comparison view • Color-coded peak labels you can drag, toggle, and reclassify • Compare 2–5 saved guitar measurements overlaid on one chart • Save measurements with names and notes; export as files, spectrum images, or PDF reports • Import and share measurements via the Files app, AirDrop, and more • Microphone calibration support for measurement mics • Spruce quality scale, anisotropy ratio, and density checks built in • Play an audio file through the analyzer instead of the live mic PRIVACY Everything runs on your device. Guitar Tap has no accounts, no ads, no tracking, and never sends your audio or measurements anywhere. Works on iPhone, iPad, and Mac.

Screenshots

FFT AUv3 Visualizer1 screens
Guitar Tap2 screens

Verdict

The call

The clearest difference is price: FFT AUv3 Visualizer at $0.99 against Guitar Tap's $14.99. FFT AUv3 Visualizer also leads on iOS requirement (15.0 vs 17.6). Guitar Tap's advantage is update cadence (every 3 weeks vs every 8 months). On rating, ratings volume, ads and in-app purchases 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

FFT AUv3 Visualizer costs $0.99 and Guitar Tap $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FFT AUv3 Visualizer against 5.0 for Guitar Tap. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

FFT AUv3 Visualizer ships an update every 8 months, Guitar Tap every 3 weeks. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
FFT AUv3 Visualizer versus Guitar Tap: the parameters behind the verdict, then further details
ParameterFFT AUv3 VisualizerGuitar Tap
Price$0.99 — better$14.99
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.6
Further details — not scored
Size12 MB3 MB
Age rating4+4+
DeveloperDiscoDSP LLCDavid Smith

Customer experience

FFT AUv3 Visualizer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Guitar Tap

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FFT AUv3 Visualizer

No in-app purchases

None

Guitar Tap

No in-app purchases

Questions

Is FFT AUv3 Visualizer free?
FFT AUv3 Visualizer costs $0.99, with no in-app purchases.
Is Guitar Tap free?
Guitar Tap costs $14.99, with no in-app purchases.
Which has better reviews, FFT AUv3 Visualizer or Guitar Tap?
FFT AUv3 Visualizer and Guitar Tap are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do FFT AUv3 Visualizer or Guitar Tap have ads?
Neither FFT AUv3 Visualizer nor Guitar Tap shows ads.
Which is updated more often, FFT AUv3 Visualizer or Guitar Tap?
FFT AUv3 Visualizer ships an update every 8 months, and Guitar Tap every 3 weeks. Most recently, FFT AUv3 Visualizer was updated on October 1, 2026 and Guitar Tap on October 18, 2026.

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