# 探索地理 vs 投影与视图3D教具

The clearest difference is device support: 投影与视图3D教具 at 6 against 探索地理's 3. 探索地理's advantage is iOS requirement (12.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 探索地理 sells 1 one-off in-app purchase and 投影与视图3D教具 sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 探索地理 | 投影与视图3D教具 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 39 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [志荣 杨](https://appshunter.io/developer/478654885) | [天添 叶](https://appshunter.io/developer/6799125945) |

## What reviewers say

### 探索地理

[App page](https://appshunter.io/ios/app/id6758906318)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁所有功能 | $1.99 | one-time |


### 投影与视图3D教具

[App page](https://appshunter.io/ios/app/3d/id6804217452)

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Weekly Membership | $0.99 | per 7 days |
| Yearly Membership | $2.99 | per year |
| Lifetime Membership | $3.99 | one-time |


## Frequently asked questions

### Is 探索地理 free?

探索地理 is free to download, with in-app purchases available.

### Is 投影与视图3D教具 free?

投影与视图3D教具 is free to download, with in-app purchases available.

### Do 探索地理 or 投影与视图3D教具 have ads?

Neither 探索地理 nor 投影与视图3D教具 shows ads.

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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.*