# Soundstain vs FFT Spectrogram Music Player

The clearest difference is in-app purchases: Soundstain at none against FFT Spectrogram Music Player's 1. Soundstain also leads on update cadence (every 3 days vs every 6 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FFT Spectrogram Music Player sells 1 one-off in-app purchase. Soundstain asks for nothing beyond the download.

Soundstain ships an update every 3 days, FFT Spectrogram Music Player every 6 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Soundstain | FFT Spectrogram Music Player |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Size | 1 MB | 134 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Francisco Totaro](https://appshunter.io/developer/1819796780) | [Proiectus GmbH](https://appshunter.io/developer/1885129725) |

## What reviewers say

### Soundstain

[App page](https://appshunter.io/ios/app/soundstain/id6761776133)

**Features:** macOS Compatibility

**In-app purchases:** none


### FFT Spectrogram Music Player

[App page](https://appshunter.io/ios/app/fft-spectrogram-music-player/id6763494800)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is Soundstain free?

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

### Is FFT Spectrogram Music Player free?

FFT Spectrogram Music Player is free to download, with in-app purchases available.

### Do Soundstain or FFT Spectrogram Music Player have ads?

Neither Soundstain nor FFT Spectrogram Music Player shows ads.

### Which is updated more often, Soundstain or FFT Spectrogram Music Player?

Soundstain ships an update every 3 days, and FFT Spectrogram Music Player every 6 days. Most recently, Soundstain was updated on October 24, 2026 and FFT Spectrogram Music Player on October 9, 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.*