# Audio Spleeter Lite vs Niagara 4Valve Controller

The clearest difference is in-app purchases: Niagara 4Valve Controller at none against Audio Spleeter Lite's 3. Niagara 4Valve Controller also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Audio Spleeter Lite sells 3 in-app purchases, starting at $3.99 per month. Niagara 4Valve Controller asks for nothing beyond the download.

Audio Spleeter Lite ships an update every 3 months, Niagara 4Valve Controller every 2 months. The most recent releases landed on October 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Audio Spleeter Lite | Niagara 4Valve Controller |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 148 MB | 27 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [龙刚 李](https://appshunter.io/developer/1241843884) | [Niagara Automation](https://appshunter.io/developer/1459220336) |

## What reviewers say

### Audio Spleeter Lite

[App page](https://appshunter.io/ios/app/audio-spleeter-lite/id1596469037)

This app separates music into vocal and instrumental tracks using AI and center channel extraction. It supports remixing, multiple audio sources, and various export formats, offering a convenient way to isolate and manipulate audio elements.

**Highlights:** Vocal and instrument separation, AI-powered audio extraction, Center channel extraction, Remixing capabilities, Multiple audio source support, Export to various formats, Built-in audio recorder

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium version 1 year | $3.99 | per month |
| Upgrade premium one year | $14.99 | per year |
| Permanent purchase | $25.99 | one-time |


### Niagara 4Valve Controller

[App page](https://appshunter.io/ios/app/niagara-4valve-controller/id1641708221)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Audio Spleeter Lite free?

Audio Spleeter Lite is free to download, with in-app purchases available.

### Is Niagara 4Valve Controller free?

Niagara 4Valve Controller is free to download, with no in-app purchases.

### Do Audio Spleeter Lite or Niagara 4Valve Controller have ads?

Audio Spleeter Lite shows ads; Niagara 4Valve Controller does not.

### Which is updated more often, Audio Spleeter Lite or Niagara 4Valve Controller?

Audio Spleeter Lite ships an update every 3 months, and Niagara 4Valve Controller every 2 months. Most recently, Audio Spleeter Lite was updated on October 16, 2026 and Niagara 4Valve Controller on September 27, 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.*