Comparison

Sound Visualizer vs FFT Spectrogram Music Player

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

Head to head
About

Sound Visualizer

Transform your audio into dynamic, real-time visual experiences. This app analyzes your music to create spectrum bars, radial rings, and other effects. Enjoy immersive full-screen mode and background playback with lock screen controls.

Highlights
  • Real-time frequency spectrum visualization
  • Supports MP3, M4A, AAC, WAV, AIFF
  • Adaptive frequency detection
  • Full-screen immersive mode
  • Background playback with lock screen controls
  • Customizable visualization settings
Features
Read full description

Turn your music into stunning real-time visuals. Import your audio files and watch them come alive with spectrum bars, radial rings, and more — all powered by true FFT analysis. - Real-time frequency spectrum visualization - Supports MP3, M4A, AAC, WAV, and AIFF - Adaptive frequency detection — every track fills the display - Full-screen immersive mode - Background playback with lock screen controls - Customizable settings: smoothing, HF boost, frame rate, band ordering, background Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FFT Spectrogram Music Player

Features
Read full description

The FFT Spectrogram Music Player is not just a regular audio player, but a powerful tool for the perfectly synchronized and fascinating visualization of sound in real-time. I originally created this app for myself because I love "watching" the music I am listening to. Visualizations reveal so many hidden details in a track, whether it's the vocals, drums, or intricate melodies. I invested a lot of time ensuring the audio and visuals are perfectly in sync. When playing over Bluetooth, you can easily adjust the audio timing in the settings to maintain this perfect synchronization (for reference, I use -250ms when playing directly on my iPhone, and about +100ms for my car stereo). While my personal favorite is the 2D waterfall spectrogram, I have also added stunning, interactive 3D visualizations to offer even more variety. You can fully control the camera using touch gestures—just play around and explore! If you are missing a feature or have any feedback or wishes, feel free to drop me an email. Whether you are an audiophile, a musician, or just a fan of breathtaking visual effects – this app precisely analyzes the frequencies of your music and displays them seamlessly. Main Features: • Spectrum Analyzer: High-resolution stereo display (Left/Right) with 512 frequency bands for detailed frequency analysis. • Waterfall Chart: Track the acoustic history of the last 3.0 seconds in a breathtaking, color-coded waterfall graph. • 3D visualizations, customizable with drag and pinch gestures (with one finger: drag - and two fingers: rotate - Mac: click/drag: move camera left/right/up/down; shift and click: rotate, pinch to zoom) • Real-Time Sync: The visualizations react to the beat and frequencies of the music without any noticeable lag. • Built-in Player & Playlists: Manage and play your favorite music directly within the app. • Microphone Input: Use your iPhone's microphone to visualize ambient sounds, live music, or your own voice in real-time. Free Version & Pro Upgrade: You can download and try the FFT Spectogram Music Player for free. Please note that the diagrams in the free version feature a subtle watermark. Love the app? Unlock the Pro version with a one-time in-app purchase for just $0.99 (0,99 €)! The upgrade permanently removes all watermarks, allowing you to enjoy the pure, unclouded visualization of your music. Download the FFT Spectogram Music Player now and see what you've only heard so far! Keywords (max. 100 characters): music,player,spectrogram,fft,visualizer,waterfall,spectrum,audio,equalizer,analysis,microphone --- Legal Notice / Imprint --- Proiectus GmbH Am Bodenberg 8 31028 Gronau (Leine) Germany Contact: Phone: +49 (0) 5182 / 979 28 44 Email: info@proiectus.de Authorized Representative: Sole Managing Director (Geschäftsführer): Dipl.-Inform. Steffen Borm Commercial Register: Court of Registry: Amtsgericht Hildesheim Registration Number: HRB 204025 VAT ID: DE234040747 Responsible for content: Dipl.-Inform. Steffen Borm Am Bodenberg 8, 31028 Gronau (Leine), Germany

Screenshots

Sound Visualizer4 screens
FFT Spectrogram Music Player4 screens

Verdict

The call

Sound Visualizer and FFT Spectrogram Music Player are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Sound Visualizer sells 1 in-app purchase, starting at $4.99 per month and FFT Spectrogram Music Player sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sound Visualizer ships an update every 11 days, FFT Spectrogram Music Player every 6 days. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
Sound Visualizer versus FFT Spectrogram Music Player: the parameters behind the verdict, then further details
ParameterSound VisualizerFFT Spectrogram Music Player
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 11 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size15 MB134 MB
Age rating4+4+
DeveloperSundarammal PalanisamyProiectus GmbH

In-app purchases

1 purchases

Sound Visualizer

Subscriptions1
  • Pro Edition$4.991 Month
1 purchases

FFT Spectrogram Music Player

One-time1
  • Premium$0.99

Questions

Is Sound Visualizer free?
Sound Visualizer is free to download, with in-app purchases available.
Is FFT Spectrogram Music Player free?
FFT Spectrogram Music Player is free to download, with in-app purchases available.
Do Sound Visualizer or FFT Spectrogram Music Player have ads?
Neither Sound Visualizer nor FFT Spectrogram Music Player shows ads.
Which is updated more often, Sound Visualizer or FFT Spectrogram Music Player?
Sound Visualizer ships an update every 11 days, and FFT Spectrogram Music Player every 6 days. Most recently, Sound Visualizer was updated on October 31, 2026 and FFT Spectrogram Music Player on October 31, 2026.

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