# FFT Spectrogram Music Player vs DLing Music Box

The clearest difference is ads: FFT Spectrogram Music Player at none against DLing Music Box's shown. DLing Music Box's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. FFT Spectrogram Music Player sells 1 one-off in-app purchase and DLing Music Box sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

FFT Spectrogram Music Player ships an update every 6 days, DLing Music Box every 8 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FFT Spectrogram Music Player | DLing Music Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dling-music-box/id6783100969/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 134 MB | 2.1 GB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proiectus GmbH](https://appshunter.io/developer/1885129725) | [Beijing Dingling Cultural Communication Co., Ltd.](https://appshunter.io/developer/1629273061) |

## What reviewers say

### 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 |


### DLing Music Box

[App page](https://appshunter.io/ios/app/dling-music-box/id6783100969)

Discover a collection of animated music boxes with relaxing melodies and ambient sounds. Enhance focus, sleep, or peaceful moments with beautiful scenes and interactive features. An optional Pro version unlocks additional content and instruments.

**Highlights:** 12 unique animated music box designs, High-quality relaxing music, Beautiful dynamic scenes, Ambient sounds for focus and sleep, Interactive music box performance mode, Personalized collections, Cross-device account synchronization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DLing Music Box Pro Monthly | $4.99 | per month |
| DLing Music Box Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is FFT Spectrogram Music Player free?

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

### Is DLing Music Box free?

DLing Music Box is free to download, with in-app purchases available.

### Do FFT Spectrogram Music Player or DLing Music Box have ads?

DLing Music Box shows ads; FFT Spectrogram Music Player does not.

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

FFT Spectrogram Music Player ships an update every 6 days, and DLing Music Box every 8 days. Most recently, FFT Spectrogram Music Player was updated on October 25, 2026 and DLing Music Box on October 7, 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.*