# STI Tx Guide vs X

The clearest difference is price: STI Tx Guide at Free against X's $2.99. X's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

STI Tx Guide is free to download; X costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | STI Tx Guide | X |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 36 MB | 121 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Abdulkarim Nasir](https://appshunter.io/developer/1463436050) |

## 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


### X

[App page](https://appshunter.io/ios/app/x-ray-interpretation-guide/id6624306622)

**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 X free?

X costs $2.99, with no in-app purchases.

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

Neither STI Tx Guide nor X shows ads.

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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.*