---
title: "FNam FFT Spectrogram Analyzer - Reviews, Revenue and Downloads in Ukraine | Apple App Store"
description: "■ FNam FFT Spectrogram Analyzer Engineers need tools that are ready to use — anytime, anywhere. FNam FFT Spectrogram Analyzer turns your smartphone into a professional audio analysis tool. Unlike typi"
---

# FNam FFT Spectrogram Analyzer — Ukraine

![FNam FFT Spectrogram Analyzer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/f9/46/f3/f946f358-9ec9-d252-b5e0-eed310b8b34d/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-LztMHb)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.formulanam.FFTSpectrumAnalyzer
**Store:** Apple App Store
**Country:** Ukraine
**Version:** 2.2 (released 2026-08-19)
**Original Release:** 2026-02-23
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/ua/app/app/id6759438376)
**AppTail Page:** [https://apptail.io/app/fnam-fft-spectrogram-analyzer-uaNy/ukraine](https://apptail.io/app/fnam-fft-spectrogram-analyzer-uaNy/ukraine)

## FNam FFT Spectrogram Analyzer Description
■ FNam FFT Spectrogram Analyzer
Engineers need tools that are ready to use — anytime, anywhere.
FNam FFT Spectrogram Analyzer turns your smartphone into a
professional audio analysis tool. Unlike typical sound meter apps,
it delivers advanced features like Dual File Comparison and CSV
Export for precise post-analysis 

* completely free, no ads.
Real-time FFT & Spectrogram / All processing runs on-device /
No audio data uploaded externally.

[Video Guide - See it in action]


■ NEW FEATURES
1. Octave Band View Mode
- Analyze sound levels by octave bands.
- Choose 1/1 or 1/3 octave band resolution in Settings.

2. Sound Event Logger
- Automatically logs sound events when the level exceeds a set threshold.
- Can save event WAV files and FNam JSON logs for later review.
- Includes a screensaver mode to reduce screen burn-in.

■ KEY FEATURES

1. Real-time Audio Analysis
• High-precision FFT (Fast Fourier Transform) Graph.
• Time Domain Waveform (Oscilloscope) view.
• Fluid Spectrogram for visualizing frequency changes over time.

2. Dual File Comparison (Exclusive Feature)
• Simultaneous loading of two WAV files for comparative analysis.
• Spectrum Overlay: Visually compare differences using color-coded traces (Blue vs. Magenta).
• Instant Calculation: Provides Arithmetic Mean and Mean Difference between signals.

3. Data Logging & Export
• Flexible Sampling Rates: Supports various rates (4000Hz, 8000Hz, 16000Hz, 22050Hz, 44100Hz).
• High-quality Recording: Audio is recorded and saved as WAV files, strictly matching the selected sampling rate.
• Raw Data Export: Exports raw PCM data to CSV format. The exported data maintains the exact sampling rate and duration, making it optimized for post-processing in Excel, MATLAB, or Python.
• File Management: Files are stored in the 'On My iPhone\FFT Analyzer' directory.
  - WAV naming format: Date_Time_SampleRate_Channel.wav 
    ex) 20260219_164715_44100Hz_Mono.wav

  - CSV naming format: Selected WAV file name_SampleRate_Duration(s).csv
    ex) 20260219_164715_44100Hz_Mono_44100_5.2s.csv

4. Professional Configuration
• Window Functions: Selectable Rectangular, Hann, Hamming, and Blackman windows.
• Frequency Weighting: Supports A, B, C, and Z (Linear) standard weighting filters.
• Axis Control: Supports both Auto-scaling and Manual range settings (Hz / dB) for precise graph inspection.
• Calibration: Independent offset controls for FFT and Time Domain to ensure alignment with professional reference equipment.
• Max Peak Hold: Displays and holds the maximum amplitude values across the frequency spectrum.
• Octave Band View Mode: Visualizes frequency levels as octave band bars for easier band-by-band analysis.

■ TECHNICAL SPECIFICATIONS
• Signal Processing: Anti-aliasing filters are automatically applied during downsampling to ensure measurement accuracy.
• Sampling Rate: Supports standard rates up to 44.1kHz (device dependent).
• Standards: Implements IEC 61672 frequency-weighting formulas for A/B/C weighting calculations.

Note: This app implements IEC 61672 frequency-weighting formulas. Measurement discrepancies compared to professional equipment may occur due to the hardware frequency response limitations of the built-in smartphone microphone. For critical measurements, the use of a calibrated external microphone is recommended.

## FNam FFT Spectrogram Analyzer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/20/42/c6/2042c68a-68da-e502-d162-29c8ccb901e2/Frame_101.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/46/1d/76/461d760e-2b55-3d23-ab2b-491ce465ba41/2._spectrogram_octaveview_ios.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3b/fe/68/3bfe680c-ac0d-f547-9cbf-2993074727cd/Frame_103.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/48/f6/87/48f68774-ebe7-caf4-14e6-860de6609764/Frame_104.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a5/a5/cd/a5a5cd33-d9fb-aea2-e3a0-a08597d77808/Frame_105.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d2/04/11/d2041113-72b8-4c86-b338-0a56363c5663/Frame_106.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/fc/ba/3f/fcba3f3a-5afc-bdaf-b6d0-c22316b3a4f3/Frame_107_2.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/53/ea/39/53ea39b7-9407-8584-da86-c801d9ebee14/8._sound_event_logger_iphone.png/2778x1284.png)






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## FNam FFT Spectrogram Analyzer Available In
- [Ukraine](https://apptail.io/app/fnam-fft-spectrogram-analyzer-uaNy/ukraine)
- [United States](https://apptail.io/app/fnam-fft-spectrogram-analyzer-uaNy/united-states)

---

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