# ASPN Go vs PREP Self

The clearest difference is update cadence: PREP Self at daily against ASPN Go's every 6 months. 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.

ASPN Go ships an update every 6 months, PREP Self daily. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ASPN Go | PREP Self |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (9 ratings)](https://appshunter.io/ios/app/prep-self-assessments-program/id6756599702/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Monetization | — | Free |
| Size | 55 MB | 44 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [The American Society of Pediatric Nephrology](https://appshunter.io/developer/1733265245) | [American Academy of Pediatrics](https://appshunter.io/developer/409863343) |

## What reviewers say

### ASPN Go

[App page](https://appshunter.io/ios/app/aspn-go/id6478542675)

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

**In-app purchases:** none


### PREP Self

[App page](https://appshunter.io/ios/app/prep-self-assessments-program/id6756599702)

Access trusted pediatric learning content through a new mobile app. Build a personalized question bank by selecting blocks from various content areas to fit your learning style and schedule. Earn CME credits and MOC points with each block.

**Highlights:** Trusted PREP content, Customizable question bank, Case-based questions, Earn CME credits, Earn MOC points, Modern user interface

**In-app purchases:** none


## Frequently asked questions

### Is ASPN Go free?

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

### Is PREP Self free?

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

### Do ASPN Go or PREP Self have ads?

Neither ASPN Go nor PREP Self shows ads.

### Which is updated more often, ASPN Go or PREP Self?

ASPN Go ships an update every 6 months, and PREP Self daily. Most recently, ASPN Go was updated on September 23, 2026 and PREP Self on September 22, 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.*