# Learning DNK vs USS One

The clearest difference is update cadence: Learning DNK at every 3 days against USS One's every 10 days. Learning DNK also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Learning DNK ships an update every 3 days, USS One every 10 days. The most recent releases landed on September 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Learning DNK | USS One |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 48 MB | 31 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Classroom.tv Inc](https://appshunter.io/developer/1023222830) | [UNIVERSIDAD SAN SEBASTIÁN](https://appshunter.io/developer/1229815685) |

## What reviewers say

### Learning DNK

[App page](https://appshunter.io/ios/app/learning-dnk/id6449544977)

**Features:** macOS Compatibility

**In-app purchases:** none


### USS One

[App page](https://appshunter.io/ios/app/uss-one/id6759725009)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learning DNK free?

Learning DNK is free to download, with no in-app purchases.

### Is USS One free?

USS One is free to download, with no in-app purchases.

### Do Learning DNK or USS One have ads?

Neither Learning DNK nor USS One shows ads.

### Which is updated more often, Learning DNK or USS One?

Learning DNK ships an update every 3 days, and USS One every 10 days. Most recently, Learning DNK was updated on September 10, 2026 and USS One on October 2, 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.*