# TUS Library vs Applied Physics

The clearest difference is update cadence: TUS Library at every 2 days against Applied Physics's every 3 months. TUS Library also leads on iOS requirement (11.0 vs 13.0). 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.

TUS Library ships an update every 2 days, Applied Physics every 3 months. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | TUS Library | Applied Physics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 34 MB | 40 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Openserve Co.,Ltd.](https://appshunter.io/developer/479158615) | [Chalit Chathirat](https://appshunter.io/developer/910858647) |

## What reviewers say

### TUS Library

[App page](https://appshunter.io/ios/app/tus-library/id1393919716)

**Features:** macOS Compatibility

**In-app purchases:** none


### Applied Physics

[App page](https://appshunter.io/ios/app/applied-physics/id1528171266)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TUS Library free?

TUS Library is free to download, with no in-app purchases.

### Is Applied Physics free?

Applied Physics is free to download, with no in-app purchases.

### Do TUS Library or Applied Physics have ads?

Neither TUS Library nor Applied Physics shows ads.

### Which is updated more often, TUS Library or Applied Physics?

TUS Library ships an update every 2 days, and Applied Physics every 3 months. Most recently, TUS Library was updated on September 17, 2026 and Applied Physics on September 18, 2026.

---

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