# 2U vs One Earthling

The clearest difference is in-app purchases: 2U at none against One Earthling's 3. One Earthling's advantage is update cadence (every 3 days vs every 34 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. One Earthling sells 3 in-app purchases, starting at $0.99 per month. 2U asks for nothing beyond the download.

2U ships an update every 34 months, One Earthling every 3 days. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 2U | One Earthling |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 days** |
| Size | 17 MB | 52 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [钰钢 王](https://appshunter.io/developer/589729469) | [杰强 葛](https://appshunter.io/developer/6790356313) |

## What reviewers say

### 2U

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

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

**In-app purchases:** none


### One Earthling

[App page](https://appshunter.io/ios/app/one-earthling/id6811782342)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Annual Membership | $5.99 | per year |
| Lifetime Membership | $14.99 | one-time |


## Frequently asked questions

### Is 2U free?

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

### Is One Earthling free?

One Earthling is free to download, with in-app purchases available.

### Do 2U or One Earthling have ads?

Neither 2U nor One Earthling shows ads.

### Which is updated more often, 2U or One Earthling?

2U ships an update every 34 months, and One Earthling every 3 days. Most recently, 2U was updated on October 27, 2026 and One Earthling on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*