Frequency Analyzer Spectrum
Audio Spectrum Analyzer Hz
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Frequency analyzer for audio engineers, musicians, and the audio-curious.
Frequency analyzer for musicians, audio engineers, and the audio-curious.
Frequency Analyzer turns your iPhone into a complete real-time audio toolkit —
see exactly what frequencies are in any sound, in true engineering accuracy,
with zero setup.
LIVE SPECTRUM
The live audio spectrum analyzer paints every frequency from 20 Hz to 20 kHz,
frame by frame, so you can watch sound move. Switch to Waterfall view to see
frequency content evolve over time — perfect for hunting down a buzz in your
room or finding the resonant frequency of a speaker. Tap any peak to lock a
marker on it. As a pure spectrum analyzer it shows you the dominant tone in
big, easy numbers.
PITCH METER
Need to know exactly what note you're playing? The pitch meter is a
high-precision frequency meter that detects any frequency in Hz with
cents-of-a-semitone accuracy. Built-in tunings for guitar, bass, ukulele, and
violin. Use it as a chromatic tuner, a vocal tuner, or just as a pure sound
frequency analyzer when you need to identify a tone in the air.
LOUDNESS METER
Switch the meter into Loudness mode and Frequency Analyzer becomes a
calibrated decibel meter with A-weighted, C-weighted, or Z-weighted readings —
the same modes you'd find on a professional sound level meter. Track peak and
average dB across a session. Use it to check whether your room is too loud,
your gear is too hot, or the office really does need a quieter coffee machine.
TONE GENERATOR
The built-in tone generator covers 20 Hz to 20 kHz with sine, square,
triangle, and saw waveforms. Send any frequency to your speakers in seconds —
handy for testing studio monitors, finding speaker rattles, referencing a
pitch, or feeding a signal into the spectrum analyzer for calibration.
LOG SWEEP
The log frequency sweep slides smoothly from 20 Hz to the top of human hearing
in 5, 15, 30, or 60 seconds. Pair it with the audio spectrum analyzer in
another room to find weak driver frequencies, sympathetic resonances, or "the
one" buzz that's been driving you mad.
HEARING TEST
The 8 kHz to 20 kHz hearing test tells you the highest frequency you can still
hear and gives a quick age-related estimate. Use headphones for accurate
results.
RECORD AND REPLAY
Capture 10 seconds of audio at any time. The replay engine plays it back
through the same FFT pipeline so you can analyze the frequency content of a
moment that already passed — replay it in the audio frequency analyzer view at
full resolution.
SESSIONS
Every analysis session is saved automatically — dominant frequency, min, max,
average, peak dB. Look back at what your room sounds like, how high you sang,
or how loud last night really was.
WHY FREQUENCY ANALYZER
• Pure audio engineering accuracy — Hann-windowed FFT at 44.1 kHz
• Real-time, low-latency rendering
• Works fully offline, no account, no subscription, no ads
• Clean, focused dark UI built for the iPhone
• Five tools in one frequency analyzer: spectrum, meter, generator, sweep,
hearing test
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Haitam Baid, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Haitam Baid
- Size
- 20.2 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Frequency Analyzer