# First Aid QA for USMLE Step 1 vs NephX

The clearest difference is in-app purchases: NephX at none against First Aid QA for USMLE Step 1's 7. NephX also leads on ads (none vs shown) and update cadence (every 8 days vs every 31 months). First Aid QA for USMLE Step 1's advantage is iOS requirement (13.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. First Aid QA for USMLE Step 1 sells 7 in-app purchases, starting at $19.99 per month. NephX asks for nothing beyond the download.

First Aid QA for USMLE Step 1 ships an update every 31 months, NephX every 8 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | First Aid QA for USMLE Step 1 | NephX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (83 ratings)](https://appshunter.io/ios/app/first-aid-qa-for-usmle-step-1/id1558975802/reviews)** | — |
| Number of ratings | **83** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 31 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 147 MB | 123 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 17+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Gobi Ganesan](https://appshunter.io/developer/1834628866) |

## What reviewers say

### First Aid QA for USMLE Step 1

[App page](https://appshunter.io/ios/app/first-aid-qa-for-usmle-step-1/id1558975802)

Prepare for the USMLE Step 1 with a comprehensive Q&A review. This app offers 1,000 board-style questions, detailed explanations, and high-yield facts linked to a best-selling study guide. Access content offline after initial download.

**Highlights:** 1000 board-style questions, Detailed explanations for answers, Linked to First Aid study guide, 30+ high-yield images, diagrams, tables, One complete practice exam, Offline content access, SmartSearch technology

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USMLE-1 Monthly Subscription | $19.99 | per month |
| USMLE-1 3 Month Subscription | $25.99 | per 3 months |
| 25% Off for Limited Period | $29.99 | per year |
| 20% off for Limited Period | $31.99 | per year |
| 15% Off for Limited Period | $33.99 | per year |
| First Aid Q&A for USMLE Step 1 | $38.99 | per year |
| First Aid Q&A for USMLE Step 1 | $39.99 | one-time |


### NephX

[App page](https://appshunter.io/ios/app/nephx/id6775449698)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is First Aid QA for USMLE Step 1 free?

First Aid QA for USMLE Step 1 is free to download, with in-app purchases available.

### Is NephX free?

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

### Do First Aid QA for USMLE Step 1 or NephX have ads?

First Aid QA for USMLE Step 1 shows ads; NephX does not.

### Which is updated more often, First Aid QA for USMLE Step 1 or NephX?

First Aid QA for USMLE Step 1 ships an update every 31 months, and NephX every 8 days. Most recently, First Aid QA for USMLE Step 1 was updated on October 24, 2026 and NephX on October 12, 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.*