# 别白干 vs Little Beaver

The clearest difference is in-app purchases: Little Beaver at none against 别白干's 4. 别白干's advantage is update cadence (every 3 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 别白干 sells 4 in-app purchases, starting at $3.99 per month. Little Beaver asks for nothing beyond the download.

别白干 ships an update every 3 days, Little Beaver every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | 别白干 | Little Beaver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 48 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [语婷 张](https://appshunter.io/developer/1882916238) | [杰 金](https://appshunter.io/developer/6777710344) |

## What reviewers say

### 别白干

[App page](https://appshunter.io/ios/app/id6760716221)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| birdle月卡 | $3.99 | per month |
| Birdle 会员季卡 | $6.99 | per 3 months |
| Birdle 限时会员年卡 | $9.99 | per year |
| Birdle 会员年卡 | $12.99 | per year |


### Little Beaver

[App page](https://appshunter.io/ios/app/little-beaver-focus-timer/id6778649050)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 别白干 free?

别白干 is free to download, with in-app purchases available.

### Is Little Beaver free?

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

### Do 别白干 or Little Beaver have ads?

Neither 别白干 nor Little Beaver shows ads.

### Which is updated more often, 别白干 or Little Beaver?

别白干 ships an update every 3 days, and Little Beaver every 3 weeks. Most recently, 别白干 was updated on October 31, 2026 and Little Beaver on October 31, 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.*