# FNam FFT Spectrogram Analyzer vs Spectrum Analyzer+ Audio FFT

The clearest difference is ads: FNam FFT Spectrogram Analyzer at none against Spectrum Analyzer+ Audio FFT's shown. Spectrum Analyzer+ Audio FFT's advantage is update cadence (weekly vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FNam FFT Spectrogram Analyzer ships an update fortnightly, Spectrum Analyzer+ Audio FFT weekly. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | FNam FFT Spectrogram Analyzer | Spectrum Analyzer+ Audio FFT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-plus-audio-fft/id6760830858/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Ad-supported |
| Size | 4 MB | 69 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [YEON SEOB KIM](https://appshunter.io/developer/1878586254) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### FNam FFT Spectrogram Analyzer

[App page](https://appshunter.io/ios/app/fnam-fft-spectrogram-analyzer/id6759438376)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Spectrum Analyzer+ Audio FFT

[App page](https://appshunter.io/ios/app/spectrum-analyzer-plus-audio-fft/id6760830858)

This utility transforms your device into a real-time audio frequency analyzer. It visualizes sound frequencies from 20 Hz to 20 kHz using the microphone, displaying amplitude and peak frequencies. It's designed for musicians, audio engineers, and sound enthusiasts.

**Highlights:** Real-time FFT audio spectrum visualization, Frequency range 20 Hz to 20 kHz, Peak frequency detection, Average dB level per band, Adjustable dB range, Dark theme

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FNam FFT Spectrogram Analyzer free?

FNam FFT Spectrogram Analyzer is free to download, with no in-app purchases.

### Is Spectrum Analyzer+ Audio FFT free?

Spectrum Analyzer+ Audio FFT is free to download, with no in-app purchases.

### Do FNam FFT Spectrogram Analyzer or Spectrum Analyzer+ Audio FFT have ads?

Spectrum Analyzer+ Audio FFT shows ads; FNam FFT Spectrogram Analyzer does not.

### Which is updated more often, FNam FFT Spectrogram Analyzer or Spectrum Analyzer+ Audio FFT?

FNam FFT Spectrogram Analyzer ships an update fortnightly, and Spectrum Analyzer+ Audio FFT weekly. Most recently, FNam FFT Spectrogram Analyzer was updated on October 11, 2026 and Spectrum Analyzer+ Audio FFT on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*