# STI Tx Guide vs HPVcancerFree

The clearest difference is rating: HPVcancerFree at 5.0 against STI Tx Guide's 3.5. STI Tx Guide's advantage is ratings volume (36 vs 2) and update cadence (every 2 months vs every 6 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.

HPVcancerFree 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, HPVcancerFree every 6 months. The most recent releases landed on August 28, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | HPVcancerFree |
| --- | --- | --- |
| 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/hpvcancerfree/id1280444596/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 6 months |
| Monetization | Free | Free |
| Size | 36 MB | 24 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Radiant Creative Group, LLC](https://appshunter.io/developer/1021882711) |

## 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


### HPVcancerFree

[App page](https://appshunter.io/ios/app/hpvcancerfree/id1280444596)

This app provides parents with factual information about the HPV vaccine, its safety, and effectiveness. It helps address common myths and facilitates discussions with pediatricians, offering tools to schedule vaccinations and set reminders.

**Highlights:** HPV infection and disease information, Vaccine safety and effectiveness details, Vaccination schedule and recommendations, Myth-busting common misconceptions, Pediatrician discussion preparation, Vaccine appointment scheduling, Appointment reminders

**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 HPVcancerFree free?

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

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

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

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

Neither STI Tx Guide nor HPVcancerFree shows ads.

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

STI Tx Guide ships an update every 2 months, and HPVcancerFree every 6 months. Most recently, STI Tx Guide was updated on August 28, 2026 and HPVcancerFree on June 1, 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.*