# STI Tx Guide vs Antimicrobial Guide

The clearest difference is rating: Antimicrobial Guide at 5.0 against STI Tx Guide's 3.5. Antimicrobial Guide also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (7.0 vs 15.0). STI Tx Guide's advantage is ratings volume (36 vs 2). 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.

Antimicrobial Guide 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 2, so its average is the more settled of the two.

STI Tx Guide ships an update every 2 months, Antimicrobial Guide every 3 weeks. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | Antimicrobial Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/antimicrobial-guide/id1032955474/reviews)** |
| Number of ratings | **36** | 2 |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 36 MB | 1 MB |
| Requires iOS | 15.0 | **7.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Portable Databases](https://appshunter.io/developer/333398128) |

## 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


### Antimicrobial Guide

[App page](https://appshunter.io/ios/app/antimicrobial-guide/id1032955474)

This app assists healthcare professionals in choosing the right antimicrobial treatments for patients. It displays recommended drug regimens based on local guidelines after a database is loaded. It's a convenient tool for distributing treatment guidelines.

**Highlights:** Select infection of interest, Display recommended drug regimens, Utilize local healthcare institution guidelines, Distribute empiric antimicrobial treatment guidelines, Convenient clinician tool

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

**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 Antimicrobial Guide free?

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

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

Antimicrobial Guide is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while Antimicrobial Guide averages 5.0 from 2 ratings.

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

Neither STI Tx Guide nor Antimicrobial Guide shows ads.

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

STI Tx Guide ships an update every 2 months, and Antimicrobial Guide every 3 weeks. Most recently, STI Tx Guide was updated on October 8, 2026 and Antimicrobial Guide on October 2, 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.*