# STI Tx Guide vs HIV

The clearest difference is rating: HIV at 5.0 against STI Tx Guide's 3.5. HIV also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). STI Tx Guide's advantage is ratings volume (36 vs 1). 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.

HIV holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: STI Tx Guide has 36 ratings behind it against 1, so its average is the more settled of the two.

STI Tx Guide ships an update every 8 months, HIV every 7 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | HIV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hiv-hcv/id1569455164/reviews)** |
| Number of ratings | **36** | 1 |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 7 months** |
| Monetization | Free | Free |
| Size | 31 MB | 19 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [VirologyEd Consultants, LLC](https://appshunter.io/developer/1216837691) |

## What reviewers say

### STI Tx Guide

[App page](https://appshunter.io/ios/app/sti-tx-guide/id655206856)

Provides healthcare professionals with up-to-date, evidence-based recommendations for the prevention, diagnosis, and treatment of sexually transmitted infections. Features include clinical care guidance, sexual history resources, and patient materials for effective patient management.

**Highlights:** STI prevention recommendations, Diagnosis guidance, Treatment protocols, Clinical care assistance, Sexual history resources, Patient management tools

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

**In-app purchases:** none


### HIV

[App page](https://appshunter.io/ios/app/hiv-hcv/id1569455164)

This app provides practicing clinicians with information on HIV medications and potential drug interactions with commonly co-prescribed HCV and Primary Care medications. It includes sections on HIV-HCV interactions, HCV-Primary Care medication interactions, drug metabolism, and links to external resources for clinical support.

**Highlights:** HIV-HCV drug interaction checker, HCV-Primary Care medication interaction data, Drug metabolism information, Links to clinical support resources, DHHS HIV Guidelines data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STI Tx Guide free?

STI Tx Guide is free to download, with no in-app purchases.

### Is HIV free?

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

### Which has better reviews, STI Tx Guide or HIV?

HIV is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while HIV averages 5.0 from 1 ratings.

### Do STI Tx Guide or HIV have ads?

Neither STI Tx Guide nor HIV shows ads.

### Which is updated more often, STI Tx Guide or HIV?

STI Tx Guide ships an update every 8 months, and HIV every 7 months. Most recently, STI Tx Guide was updated on November 1, 2026 and HIV on October 30, 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.*