Comparison

bismark bs vs Audio Analyzer

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

Head to head
About

bismark bs

This app provides real-time audio spectrum analysis using FFT, visualizing sound frequencies from your device's microphone. It offers customizable display options for clear analysis, suitable for professionals and students.

Highlights
  • Real-time FFT audio analysis
  • Peak frequency and amplitude detection
  • Snapshot function for waveform comparison
  • Customizable graph scale and FFT window
  • Adjustable decay time and amplitude offset
Read full description

bismark bs-spectrum is a precise and responsive real-time audio spectrum analyzer using FFT (Fast Fourier Transform). It captures sound through your iPhone or iPad’s built-in microphone and visualizes the frequency spectrum with clarity. Key Features: • Real-time FFT analysis of audio input • Peak frequency and amplitude detection • Snapshot function for waveform comparison • Customizable display options Display Modes: • Graph Scale: Linear / Logarithmic • FFT Window: Rectangle, Hamming, Hanning, Blackman • Decay Time: From 250 ms to 4 seconds • Amplitude Offset control Ideal for: • Audio engineers • Musicians and producers • Sound designers • Educational purposes in acoustics or signal processing bismark bs-spectrum provides a clean and accurate analysis experience, ideal for professionals and learners alike.

About

Audio Analyzer

Visualize audio in real-time with waveform and spectrum analysis. Explore historical peaks and FFT data with intuitive touch controls for zooming and volume adjustment.

Highlights
  • Waveform visualizer (oscilloscope)
  • Spectrum analyzer
  • Historical peak display
  • Historical FFT
  • Full-screen mode
  • Zoom and swipe gestures
  • Input volume adjustment
Features
Read full description

The analyzed result of the waveform is rendered at 60FPS.
The following 4 functions can be accessed: Waveform visualizer (oscilloscope) Spectrum analyzer Historical peak Historical FFT Tapping each function enters into full-screen mode and tapping once more exits full-screen mode. Horizontal zoom is only available for the spectrum analyzer.
Magnification gesture (aka pinching) allows for zooming in and out, and frequency offset can be performed by swiping on the screen horizontally. Vertical swiping adjusts input volume.
Coefficients are displayed in the corner. 
*dBFullScale
20 * log10 ( input) A demonstration is here. https://www.youtube.com/watch?v=6mDa_zCgYzE

Screenshots

bismark bs4 screens
Audio Analyzer4 screens

Verdict

The call

The clearest difference is review sentiment: Audio Analyzer at 100% against bismark bs's 56%. Audio Analyzer also leads on rating (5.0 vs 3.0) and update cadence (every 2 months vs every 5 months). On price, 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

bismark bs costs $3.99 and Audio Analyzer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Audio Analyzer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 56% of bismark bs's written reviews are positive against 100% of Audio Analyzer's.

UpkeepUpdate frequency

bismark bs ships an update every 5 months, Audio Analyzer every 2 months. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
bismark bs versus Audio Analyzer: the parameters behind the verdict, then further details
Parameterbismark bsAudio Analyzer
Price$3.99$3.99
Rating3.0 (2 ratings)5.0 (2 ratings) — better
Positive reviews56.3% of reviews100.0% of reviews — better
Number of ratings22
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size26 MB1 MB
Age rating4+4+
Developerbismark LLCNarumi Inada

Customer experience

bismark bs

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews32 reviews
Positive56.3%
Neutral21.9%
Negative21.9%

Audio Analyzer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

bismark bs

No in-app purchases

None

Audio Analyzer

No in-app purchases

Questions

Is bismark bs free?
bismark bs costs $3.99, with no in-app purchases.
Is Audio Analyzer free?
Audio Analyzer costs $3.99, with no in-app purchases.
Which has better reviews, bismark bs or Audio Analyzer?
Audio Analyzer is rated higher. bismark bs averages 3.0 out of 5 from 2 ratings, while Audio Analyzer averages 5.0 from 2 ratings.
Do bismark bs or Audio Analyzer have ads?
Neither bismark bs nor Audio Analyzer shows ads.
Which is updated more often, bismark bs or Audio Analyzer?
bismark bs ships an update every 5 months, and Audio Analyzer every 2 months. Most recently, bismark bs was updated on November 9, 2026 and Audio Analyzer on November 3, 2026.

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