# The PrEP Resource vs Syphilis Tools

The clearest difference is rating: The PrEP Resource at 5.0 against Syphilis Tools's 4.5. The PrEP Resource also leads on iOS requirement (13.0 vs 15.0.0). Syphilis Tools's advantage is update cadence (every 11 days vs every 7 months). On price, ratings volume, 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.

The PrEP Resource holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

The PrEP Resource ships an update every 7 months, Syphilis Tools every 11 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | The PrEP Resource | Syphilis Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/the-prep-resource/id1672652294/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/syphilis-tools/id6758426004/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 11 days** |
| Monetization | Free | Free |
| Size | 48 MB | 57 MB |
| Requires iOS | **13.0** | 15.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Complete Medicine, LLC](https://appshunter.io/developer/1630825166) | [University Of Washington](https://appshunter.io/developer/328228464) |

## What reviewers say

### The PrEP Resource

[App page](https://appshunter.io/ios/app/the-prep-resource/id1672652294)

This medical app assists clinicians in screening patients for HIV pre-exposure prophylaxis (PrEP), selecting and prescribing appropriate regimens, and managing follow-up care. It offers tools for initial evaluation, counseling, and includes offline access to guidelines and calculators.

**Highlights:** HIV PrEP screening tool, Prescribing and counseling guidance, Follow-up and discontinuation advice, Clinical calculators, Offline USPHS guidelines, Offline clinical tools

**Features:** macOS Compatibility

**In-app purchases:** none


### Syphilis Tools

[App page](https://appshunter.io/ios/app/syphilis-tools/id6758426004)

This medical reference app provides healthcare professionals and trainees with up-to-date information on diagnosing, treating, and preventing syphilis. It includes tools for screening, serologic testing, staging, treatment, monitoring, and partner management, all based on CDC guidelines.

**Highlights:** CDC STI Treatment Guidelines, Offline accessibility, Geographic Risk Tool, Serologic Testing Interpretation, Nontreponemal Titer Tool, Treatment Regimen Summaries, Partner Management Guidance

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

**In-app purchases:** none


## Frequently asked questions

### Is The PrEP Resource free?

The PrEP Resource is free to download, with no in-app purchases.

### Is Syphilis Tools free?

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

### Which has better reviews, The PrEP Resource or Syphilis Tools?

The PrEP Resource is rated higher. The PrEP Resource averages 5.0 out of 5 from 1 ratings, while Syphilis Tools averages 4.5 from 2 ratings.

### Do The PrEP Resource or Syphilis Tools have ads?

Neither The PrEP Resource nor Syphilis Tools shows ads.

### Which is updated more often, The PrEP Resource or Syphilis Tools?

The PrEP Resource ships an update every 7 months, and Syphilis Tools every 11 days. Most recently, The PrEP Resource was updated on October 9, 2026 and Syphilis Tools on October 16, 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.*