# 试管百科 vs BOSS计时器

The clearest difference is in-app purchases: 试管百科 at none against BOSS计时器's 3. 试管百科 also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BOSS计时器 sells 3 in-app purchases, starting at $0.99 per month. 试管百科 asks for nothing beyond the download.

试管百科 ships an update every 3 weeks, BOSS计时器 every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 试管百科 | BOSS计时器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 44 MB | 4 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Chengdu Mantang Tianxia Network Technology Co., Ltd.](https://appshunter.io/developer/1576061027) | [Changsha Junren Network Technology Co Ltd](https://appshunter.io/developer/1705381150) |

## What reviewers say

### 试管百科

[App page](https://appshunter.io/ios/app/id1641664209)

**Features:** macOS Compatibility

**In-app purchases:** none


### BOSS计时器

[App page](https://appshunter.io/ios/app/boss/id6475070696)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 自动续费月度会员 | $0.99 | per month |
| 自动续费年度订阅 | $2.99 | per year |
| boss计时器永久会员 | $9.99 | one-time |


## Frequently asked questions

### Is 试管百科 free?

试管百科 is free to download, with no in-app purchases.

### Is BOSS计时器 free?

BOSS计时器 is free to download, with in-app purchases available.

### Do 试管百科 or BOSS计时器 have ads?

Neither 试管百科 nor BOSS计时器 shows ads.

### Which is updated more often, 试管百科 or BOSS计时器?

试管百科 ships an update every 3 weeks, and BOSS计时器 every 3 months. Most recently, 试管百科 was updated on November 3, 2026 and BOSS计时器 on November 4, 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.*