# 白噪音 vs Schedule Progress

The clearest difference is price: 白噪音 at Free against Schedule Progress's $4.99. 白噪音 also leads on update cadence (every 8 days vs every 4 months) and iOS requirement (11.0 vs 17). Schedule Progress's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

白噪音 is free to download; Schedule Progress costs $4.99 up front. 白噪音 sells 3 in-app purchases, starting at $1.99 per month. Schedule Progress asks for nothing beyond the download.

白噪音 ships an update every 8 days, Schedule Progress every 4 months. Both last shipped on September 20, 2026.

## The numbers

| Metric | 白噪音 | Schedule Progress |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 4 months |
| Size | 93 MB | 3 MB |
| Requires iOS | **11.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [魁鹏 宋](https://appshunter.io/developer/977980685) | [德权 晋](https://appshunter.io/developer/1804927036) |

## 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 |


### Schedule Progress

[App page](https://appshunter.io/ios/app/schedule-progress/id6743856860)

**Features:** 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 Schedule Progress free?

Schedule Progress costs $4.99, with no in-app purchases.

### Do 白噪音 or Schedule Progress have ads?

白噪音 shows ads; Schedule Progress does not.

### Which is updated more often, 白噪音 or Schedule Progress?

白噪音 ships an update every 8 days, and Schedule Progress every 4 months. Most recently, 白噪音 was updated on September 20, 2026 and Schedule Progress on September 20, 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.*