# 动物百科 vs Now睡眠

The clearest difference is in-app purchases: 动物百科 at none against Now睡眠's 1. Now睡眠's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Now睡眠 sells 1 one-off in-app purchase. 动物百科 asks for nothing beyond the download.

动物百科 ships an update every 3 weeks, Now睡眠 every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 动物百科 | Now睡眠 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 15 MB | 41 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [浩杰 姬](https://appshunter.io/developer/1514456091) | [亚琼 刘](https://appshunter.io/developer/1528119356) |

## What reviewers say

### 动物百科

[App page](https://appshunter.io/ios/app/id1629303888)

**Features:** macOS Compatibility

**In-app purchases:** none


### Now睡眠

[App page](https://appshunter.io/ios/app/now/id6480343731)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 终生VIP | $0.99 | one-time |


## Frequently asked questions

### Is 动物百科 free?

动物百科 is free to download, with no in-app purchases.

### Is Now睡眠 free?

Now睡眠 is free to download, with in-app purchases available.

### Do 动物百科 or Now睡眠 have ads?

动物百科 shows ads; Now睡眠 does not.

### Which is updated more often, 动物百科 or Now睡眠?

动物百科 ships an update every 3 weeks, and Now睡眠 every 2 weeks. Most recently, 动物百科 was updated on November 3, 2026 and Now睡眠 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.*