# USD Law vs LEAF from Aspen

The clearest difference is update cadence: LEAF from Aspen at every 9 days against USD Law's every 9 months. USD Law's advantage is iOS requirement (12.0 vs 14.2). 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.

USD Law ships an update every 9 months, LEAF from Aspen every 9 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | USD Law | LEAF from Aspen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 18.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 24 MB | 395 MB |
| Requires iOS | **12.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [University of San Diego](https://appshunter.io/developer/327884947) | [Aspen Learning Library](https://appshunter.io/developer/1600433328) |

## What reviewers say

### USD Law

[App page](https://appshunter.io/ios/app/usd-law/id766722533)

**Features:** macOS Compatibility

**In-app purchases:** none


### LEAF from Aspen

[App page](https://appshunter.io/ios/app/leaf-from-aspen/id6473449339)

This app offers an audio-first approach to legal education, allowing users to listen to casebooks and legal content on the go. It transforms commutes and daily routines into learning opportunities, ideal for exam preparation and deepening legal understanding.

**Highlights:** Audio casebooks, On-the-go learning, Legal concept deepening, Exam preparation, Flexible study platform, Audio excerpts

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

**In-app purchases:** none


## Frequently asked questions

### Is USD Law free?

USD Law is free to download, with no in-app purchases.

### Is LEAF from Aspen free?

LEAF from Aspen is free to download, with no in-app purchases.

### Do USD Law or LEAF from Aspen have ads?

Neither USD Law nor LEAF from Aspen shows ads.

### Which is updated more often, USD Law or LEAF from Aspen?

USD Law ships an update every 9 months, and LEAF from Aspen every 9 days. Most recently, USD Law was updated on October 2, 2026 and LEAF from Aspen on October 11, 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.*