# STI Tx Guide vs ASCVD Risk

The clearest difference is price: STI Tx Guide at Free against ASCVD Risk's $2.99. STI Tx Guide also leads on rating (3.5 vs 1.0) and update cadence (every 2 months vs every 19 months). ASCVD Risk's advantage is review sentiment (67% vs 36%) and 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; ASCVD Risk costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

STI Tx Guide holds the better App Store score, 3.5 against 1.0. 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. Written reviews complicate that: 36% of STI Tx Guide's written reviews are positive against 67% of ASCVD Risk'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, ASCVD Risk every 19 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | ASCVD Risk |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ascvd-risk/id744733904/reviews) |
| Number of ratings | **36** | 1 |
| Positive reviews | 35.7% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 19 months |
| Monetization | **Free** | Paid |
| Size | 36 MB | 10 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [ScyMed, Inc](https://appshunter.io/developer/545140733) |

## 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


### ASCVD Risk

[App page](https://appshunter.io/ios/app/ascvd-risk/id744733904)

This medical calculator helps healthcare professionals assess a patient's 10-year risk of atherosclerotic cardiovascular disease using the latest ACC/AHA guidelines. It also computes traditional risk factors like Framingham and NCEP scores.

**Highlights:** ASCVD 10-year risk assessment, Pooled Cohort Risk Equations, Framingham Risk calculation, NCEP and Metabolic Syndrome scores, BMI and GFR computation, Part of comprehensive Medical Calculator System

**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 ASCVD Risk free?

ASCVD Risk costs $2.99, with no in-app purchases.

### Which has better reviews, STI Tx Guide or ASCVD Risk?

STI Tx Guide is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while ASCVD Risk averages 1.0 from 1 ratings.

### Do STI Tx Guide or ASCVD Risk have ads?

Neither STI Tx Guide nor ASCVD Risk shows ads.

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

STI Tx Guide ships an update every 2 months, and ASCVD Risk every 19 months. Most recently, STI Tx Guide was updated on October 23, 2026 and ASCVD Risk on October 26, 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.*