# USMLE Mastery vs Peptify

The clearest difference is in-app purchases: Peptify at none against USMLE Mastery's 2. Peptify also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. USMLE Mastery sells 2 in-app purchases, starting at $9.99 per month. Peptify asks for nothing beyond the download.

USMLE Mastery ships an update monthly, Peptify fortnightly. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | USMLE Mastery | Peptify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/usmle-mastery/id6635993731/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Subscription | — |
| Size | 9 MB | 44 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [DANIEL VILLAREAL](https://appshunter.io/developer/6803502983) |

## What reviewers say

### USMLE Mastery

[App page](https://appshunter.io/ios/app/usmle-mastery/id6635993731)

Prepare for medical licensing exams with a comprehensive study tool. Access thousands of practice questions with detailed explanations, track your progress with analytics, and create custom tests. Study offline and stay updated with the latest exam guidelines.

**Highlights:** Thousands of practice questions, Detailed explanation for each question, Performance analytics, Customizable practice tests, Offline access, Regular updates

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $29.99 | one-time |


### Peptify

[App page](https://appshunter.io/ios/app/peptify-peptide-database/id6803536059)

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

**In-app purchases:** none


## Frequently asked questions

### Is USMLE Mastery free?

USMLE Mastery is free to download, with in-app purchases available.

### Is Peptify free?

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

### Do USMLE Mastery or Peptify have ads?

Neither USMLE Mastery nor Peptify shows ads.

### Which is updated more often, USMLE Mastery or Peptify?

USMLE Mastery ships an update monthly, and Peptify fortnightly. Most recently, USMLE Mastery was updated on September 30, 2026 and Peptify on October 13, 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.*