Bands, peaks, holds, RTA and readable decibel detail for the curious listener.
01 / 1/3 Octave RTA · Free
LIVE AUDIO VISUALIZER FOR IOS
See what
you hear.
Fun Spectrum Analyzer turns the sound around you into vivid, responsive displays. Download free, explore three modes and three themes, then unlock the full collection with one purchase. No subscription.
- 3
- free modes
- 1
- one-time unlock
- 0
- subscriptions
LIVE CAPTURE: 3D SPECTRUM
iPhone + iPad
Portrait + landscape
Microphone processed on-device
A WHOLE ROOM OF WAYS TO LISTEN
Built for the analysis.
Made for the moment.
Start free with Voice Analysis, 1/3 Octave RTA and Radial Pulse. Full Access opens the rest, from analytical tools to gloriously over-the-top visuals.
A rolling, rotating spectrum surface with peak caps, traces and vivid color control.
02 / Rolling history display · Full Access
3D Spectrum
Metal-powered audio-reactive bloom, kaleidoscopes and feedback visuals made for music.
03 / Metal visualizer · Full Access
Fractal Bloom
Original arcade-vector scenes that turn incoming frequency peaks into fast, playful action.
04 / Arcade-vector response · Full Access
Vector Squadron
SAFETY MODE · FULL ACCESS
Put the noise
in perspective.
How loud is the room, really? Safety Mode places an estimated sound level on a color-coded scale alongside familiar sounds, from a whisper and conversation to a mower, siren and stadium.
- See the level at a glance
Live dBA estimate, peak reading, 30–150 dB scale and an 85 dBA hearing-risk reference line.
- Choose your own alert
Set a threshold and select an audible or vibration alarm. On-screen markers show where the threshold sits.
- Keep the context honest
Sound examples are approximate. The app is not a calibrated meter, medical device or substitute for hearing protection.
At a concert, game or busy gathering, it can help you notice when sound is climbing. For decisions about children’s hearing or occupational exposure, use appropriate protection and a certified meter.
SOLAR SYSTEM · FULL ACCESS
The celestial light show you've been waiting for.
Take a tour of a music-reactive solar system. Each planet's orbit follows its own range of sound frequencies, while the sun pulses with the rhythm. Moon-to-moon lasers and lightning across the asteroid belt turn the whole scene into a light show.
- Glowing frequency paths and responsive planets
- Moon lasers and asteroid-belt lightning
- Camera flyby or steady view, with adjustable zoom
3D SPECTRUM · FULL ACCESS
Sound has
another dimension.
The 3D Spectrum carries recent frequency history forward across a rotating grid, so you can watch a beat, a voice or a whole room become motion. It stays analytical without ever being dry.
- Rolling spectrum history with back-and-forth auto rotation
- Peak caps, fade trails and live waveform traces
- Independent vibrancy control for vivid or restrained color
THE LOOK IS PART OF THE LISTENING
Classic faces.
Fresh energy.
Start with Pride, Alpine Glass and Rockford Punch for free. A one-time Full Access purchase opens the rest of the theme library, from classic hi-fi faces to vivid visualizer palettes.
THEME LIBRARY11
01Pride
02Alpine Glass
03Rockford Punch
04Kenwood VFD
05Pioneer Fluoroscan
06Sansui Green
07McIntosh Blue
08Technics Amber
09Classic Spectrum
10Marantz Champagne
11Nakamichi Black
Respectfully live.
Microphone audio is analyzed on your device for the display in front of you. Fun Spectrum Analyzer does not record or upload that audio.
Read the privacy policyCatch the peak.
Tap a supported analyzer to freeze a live moment and inspect it. Full Access also unlocks CSV export and external audio input routes.
Friendly by default.
Auto gain, noise-floor behavior and a clear estimated SPL view make the app rewarding before you touch a single setting.
DOWNLOAD NOW!
Your room already has
a soundtrack. Give it a shape.
Download free and try Voice Analysis, 1/3 Octave RTA and Radial Pulse. When you’re ready, one purchase unlocks Safety Mode and the complete visualizer collection. No subscriptions or recurring charges.