# Peter the Protocol Reader vs ePASSPRO

The clearest difference is iOS requirement: ePASSPRO at 13.0 against Peter the Protocol Reader's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 5, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Peter the Protocol Reader | ePASSPRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/peter-the-protocol-reader/id6754336090/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 108 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Care Access](https://appshunter.io/developer/1889628360) | [KCRN Research](https://appshunter.io/developer/1860211351) |

## What reviewers say

### Peter the Protocol Reader

[App page](https://appshunter.io/ios/app/peter-the-protocol-reader/id6754336090)

This AI assistant streamlines clinical research by quickly converting protocols into actionable insights. It's designed to enhance the quality and efficiency of research delivery for clinical sites.

**Highlights:** Protocol to practical insights, AI-powered assistance, High-quality research delivery, Secure and trusted, Confidence in research

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

**In-app purchases:** none


### ePASSPRO

[App page](https://appshunter.io/ios/app/epasspro/id6756346659)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Peter the Protocol Reader free?

Peter the Protocol Reader is free to download, with no in-app purchases.

### Is ePASSPRO free?

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

### Do Peter the Protocol Reader or ePASSPRO have ads?

Neither Peter the Protocol Reader nor ePASSPRO shows ads.

### Which is updated more often, Peter the Protocol Reader or ePASSPRO?

Peter the Protocol Reader ships an update every 3 weeks, and ePASSPRO every 3 weeks. Most recently, Peter the Protocol Reader was updated on October 5, 2026 and ePASSPRO on September 20, 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.*