# OXYGEN vs FNam FFT Spectrogram Analyzer

The clearest difference is iOS requirement: OXYGEN at 15.1 against FNam FFT Spectrogram Analyzer's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OXYGEN ships an update every 3 weeks, FNam FFT Spectrogram Analyzer fortnightly. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OXYGEN | FNam FFT Spectrogram Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 21 MB | 4 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [DEWETRON GmbH](https://appshunter.io/developer/1858523220) | [YEON SEOB KIM](https://appshunter.io/developer/1878586254) |

## What reviewers say

### OXYGEN

[App page](https://appshunter.io/ios/app/oxygen-go/id6756105868)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is OXYGEN free?

OXYGEN is free to download, with no in-app purchases.

### Is FNam FFT Spectrogram Analyzer free?

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

### Do OXYGEN or FNam FFT Spectrogram Analyzer have ads?

Neither OXYGEN nor FNam FFT Spectrogram Analyzer shows ads.

### Which is updated more often, OXYGEN or FNam FFT Spectrogram Analyzer?

OXYGEN ships an update every 3 weeks, and FNam FFT Spectrogram Analyzer fortnightly. Most recently, OXYGEN was updated on October 19, 2026 and FNam FFT Spectrogram Analyzer on October 11, 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.*