# STI Tx Guide vs IDSA Practice Guidelines

The clearest difference is rating: IDSA Practice Guidelines at 4.8 against STI Tx Guide's 3.5. IDSA Practice Guidelines also leads on ratings volume (559 vs 36) and iOS requirement (12.0 vs 15.0). STI Tx Guide's advantage is review sentiment (36% vs 0%) and update cadence (every 2 months vs every 7 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

IDSA Practice Guidelines holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: IDSA Practice Guidelines has 559 ratings behind it against 36, so its average is the more settled of the two. Written reviews complicate that: 36% of STI Tx Guide's written reviews are positive against 0% of IDSA Practice Guidelines's, so the app with the better star average is not the one people write more warmly about.

STI Tx Guide ships an update every 2 months, IDSA Practice Guidelines every 7 months. The most recent releases landed on August 28, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | IDSA Practice Guidelines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) | **[4.8 (559 ratings)](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375/reviews)** |
| Number of ratings | 36 | **559** |
| Positive reviews | **35.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 36 MB | 105 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Infectious Diseases Society of America](https://appshunter.io/developer/1477996603) |

## 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


### IDSA Practice Guidelines

[App page](https://appshunter.io/ios/app/idsa-practice-guidelines/id1478886375)

Access and stay updated with the latest clinical guidelines from the Infectious Diseases Society of America. This app offers interactive tools, search functionality, and the ability to bookmark key information and take notes for healthcare professionals.

**Highlights:** Access clinical guidelines, Interactive tools, Search guidelines, Bookmark pages, Take notes

**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 IDSA Practice Guidelines free?

IDSA Practice Guidelines is free to download, with no in-app purchases.

### Which has better reviews, STI Tx Guide or IDSA Practice Guidelines?

IDSA Practice Guidelines is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while IDSA Practice Guidelines averages 4.8 from 559 ratings.

### Do STI Tx Guide or IDSA Practice Guidelines have ads?

Neither STI Tx Guide nor IDSA Practice Guidelines shows ads.

### Which is updated more often, STI Tx Guide or IDSA Practice Guidelines?

STI Tx Guide ships an update every 2 months, and IDSA Practice Guidelines every 7 months. Most recently, STI Tx Guide was updated on August 28, 2026 and IDSA Practice Guidelines on September 28, 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.*