# 认识天文知识 vs 唐诗三百首

The clearest difference is in-app purchases: 认识天文知识 at none against 唐诗三百首's 1. 认识天文知识 also leads on device support and iOS requirement (10.1 vs 17.6). On price there is nothing between them.

Both are free to download. 唐诗三百首 sells 1 one-off in-app purchase. 认识天文知识 asks for nothing beyond the download.

## The numbers

| Metric | 认识天文知识 | 唐诗三百首 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 27 months | — |
| Size | 33 MB | 4 MB |
| Requires iOS | **10.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [运涛 余](https://appshunter.io/developer/977049266) | [NEXTLINK PTY LTD](https://appshunter.io/developer/1115197533) |

## What reviewers say

### 认识天文知识

[App page](https://appshunter.io/ios/app/id698569503)

**Features:** macOS Compatibility

**In-app purchases:** none


### 唐诗三百首

[App page](https://appshunter.io/ios/app/id6450653913)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁复制文本 | $1.99 | one-time |


## Frequently asked questions

### Is 认识天文知识 free?

认识天文知识 is free to download, with no in-app purchases.

### Is 唐诗三百首 free?

唐诗三百首 is free to download, with in-app purchases available.

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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.*