# USMLE Pro vs Bayesian P

The clearest difference is price: Bayesian P at Free against USMLE Pro's $24.99. USMLE Pro's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.4). On update cadence, ads and in-app purchases there is nothing between them.

Bayesian P is free to download; USMLE Pro costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

USMLE Pro ships an update every 3 weeks, Bayesian P monthly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | USMLE Pro | Bayesian P |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bayesian-p-value-interpreter/id6753958115/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 33 MB | 7 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eyyup Taskin](https://appshunter.io/developer/1462950281) | [Samuel Kaplan](https://appshunter.io/developer/1825010639) |

## What reviewers say

### USMLE Pro

[App page](https://appshunter.io/ios/app/usmle-pro-step-2-ck-and-step-3/id6468001541)

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

**In-app purchases:** none


### Bayesian P

[App page](https://appshunter.io/ios/app/bayesian-p-value-interpreter/id6753958115)

This app helps interpret p-values from clinical trials by incorporating prior probabilities and Bayesian inference. It provides realistic interpretations of reported p-values, aiding in understanding the likelihood of experimental outcomes.

**Highlights:** Interpret p-values with prior probabilities, Bayesian inference for scientific expectations, Calculate probability of clinical trial outcomes, Realistic interpretation of reported p-values, Explanations and examples of Bayesian concepts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USMLE Pro free?

USMLE Pro costs $24.99, with no in-app purchases.

### Is Bayesian P free?

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

### Do USMLE Pro or Bayesian P have ads?

Neither USMLE Pro nor Bayesian P shows ads.

### Which is updated more often, USMLE Pro or Bayesian P?

USMLE Pro ships an update every 3 weeks, and Bayesian P monthly. Most recently, USMLE Pro was updated on October 10, 2026 and Bayesian P on October 9, 2026.

---

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