# 2U vs 天朗紫微AR地球仪

The clearest difference is update cadence: 天朗紫微AR地球仪 at monthly against 2U's every 34 months. 天朗紫微AR地球仪 also leads on device support (3 vs 1) and iOS requirement (11.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

2U ships an update every 34 months, 天朗紫微AR地球仪 monthly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 2U | 天朗紫微AR地球仪 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Monthly** |
| Size | 17 MB | 1.7 GB |
| Requires iOS | 18.0 | **11.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [钰钢 王](https://appshunter.io/developer/589729469) | [秀红 于](https://appshunter.io/developer/1449441031) |

## What reviewers say

### 2U

[App page](https://appshunter.io/ios/app/2u/id1499059543)

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

**In-app purchases:** none


### 天朗紫微AR地球仪

[App page](https://appshunter.io/ios/app/ar/id1547214265)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 2U free?

2U is free to download, with no in-app purchases.

### Is 天朗紫微AR地球仪 free?

天朗紫微AR地球仪 is free to download, with no in-app purchases.

### Do 2U or 天朗紫微AR地球仪 have ads?

Neither 2U nor 天朗紫微AR地球仪 shows ads.

### Which is updated more often, 2U or 天朗紫微AR地球仪?

2U ships an update every 34 months, and 天朗紫微AR地球仪 monthly. Most recently, 2U was updated on October 6, 2026 and 天朗紫微AR地球仪 on October 1, 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.*