# 白噪音 vs GRF Audio

The clearest difference is in-app purchases: GRF Audio at none against 白噪音's 3. GRF Audio also leads on ads (none vs shown). 白噪音's advantage is update cadence (every 8 days vs every 3 months) and iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. 白噪音 sells 3 in-app purchases, starting at $1.99 per month. GRF Audio asks for nothing beyond the download.

白噪音 ships an update every 8 days, GRF Audio every 3 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 白噪音 | GRF Audio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 months |
| Size | 93 MB | 129 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [魁鹏 宋](https://appshunter.io/developer/977980685) | [广州市声拓电子有限公司](https://appshunter.io/developer/1833382964) |

## What reviewers say

### 白噪音

[App page](https://appshunter.io/ios/app/id1629064155)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $1.99 | per month |
| 季度会员 | $4.49 | per 3 months |
| 年会员 | $14.49 | per year |


### GRF Audio

[App page](https://appshunter.io/ios/app/grf-audio/id6751082062)

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

**In-app purchases:** none


## Frequently asked questions

### Is 白噪音 free?

白噪音 is free to download, with in-app purchases available.

### Is GRF Audio free?

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

### Do 白噪音 or GRF Audio have ads?

白噪音 shows ads; GRF Audio does not.

### Which is updated more often, 白噪音 or GRF Audio?

白噪音 ships an update every 8 days, and GRF Audio every 3 months. Most recently, 白噪音 was updated on October 30, 2026 and GRF Audio on October 25, 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.*