Comparison

STI Tx Guide vs CVD Risk Estimator Plus

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

STI Tx Guide

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
Read full description

The new app offers quick and easy access to streamlined STI prevention, diagnosis, and treatment recommendations. The user-friendly interface includes more clinical care guidance, sexual history resources, patient materials, and other features to assist with patient management. The STI Treatment (Tx) Guidelines mobile app serves as a quick reference guide for doctors and related parties on the identification of and treatment for sexually transmitted diseases (STDs). The full STI Treatment Guidelines (cdc.gov) can be accessed at https://www.cdc.gov/std/treatment-guidelines/default.htm. The guidelines provide current evidence-based prevention, diagnostic and treatment recommendations that replace the 2015 guidance. The recommendations are intended to be a source for clinical guidance. Healthcare providers should always assess patients based on their clinical circumstances and local burden. DISCLAIMER THE MATERIALS EMBODIED IN THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC) OR THE UNITED STATES (U.S.) GOVERNMENT BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSE OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR NOT CDC OR THE U.S. GOVERNMENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.

About

CVD Risk Estimator Plus

This clinical decision support app provides comprehensive cardiovascular disease risk assessments for clinicians. It unifies two major risk calculators, incorporating traditional ASCVD modeling with modern kidney and metabolic health measures for personalized patient care.

Highlights
  • Combines ASCVD and PREVENT calculators
  • Calculates 10-year and lifetime CVD risk
  • Incorporates kidney and metabolic health
  • Provides risk category classification
  • Exports results for documentation
  • Includes clinician and patient resources
Features
Read full description

This clinical decision-support app is intended for use by healthcare professionals and unifies two cardiovascular prevention tools: the 2013 ACC/AHA Pooled Cohort Equations (previously known as the ASCVD Risk Estimator) and the American Heart Association’s PREVENT™ Calculator. Combining traditional ASCVD risk modeling with modern cardiovascular-kidney-metabolic (CKM)-inclusive risk equations, CVD Risk Estimator Plus supports comprehensive, personalized cardiovascular disease (CVD) risk assessment and clinician-guided decision-making. The results and recommendations provided by this application are intended to inform but do not replace clinical judgment. Therapeutic options should be individualized and determined after discussion between the patient and their care provider. CVD Risk Estimator Plus computes risk estimates using: • 2013 ASCVD Pooled Cohort Equations (PCE), which calculate 10-year and lifetime risk of atherosclerotic cardiovascular disease using age, sex, race, blood pressure, cholesterol profile, diabetes status, and smoking status. • 2023 PREVENT™ Equations, which estimate 10- and 30-year risk for total CVD, ASCVD, and heart failure (HF), incorporating kidney and metabolic health measures such as BMI and estimated glomerular filtration rate (eGFR), and supporting optional predictors including urine albumin creatinine ratio (UACR), hemoglobin A1c (HbA1c), and social deprivation index (SDI). Clinicians can toggle between Pooled Cohort and PREVENT™ risk trajectories to support guideline-aligned prevention discussions. This clinical decision support app provides: • Risk category classification (low, borderline, intermediate, high). • Personalized guidance informed by published guidelines, including statin therapy considerations, lifestyle interventions, and risk-enhancing clinical factors. • Export functionality supporting print and email of results for documentation and patient communication. • Resources page with related tools and informational materials for clinicians and patients, including links to source guidelines and reference documents.

Screenshots

STI Tx Guide4 screens
CVD Risk Estimator Plus4 screens

Verdict

The call

The clearest difference is rating: CVD Risk Estimator Plus at 5.0 against STI Tx Guide's 3.5. CVD Risk Estimator Plus also leads on iOS requirement (13.0 vs 15.0). STI Tx Guide's advantage is ratings volume (36 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

CVD Risk Estimator Plus 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 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 32% of CVD Risk Estimator Plus's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

STI Tx Guide ships an update every 2 months, CVD Risk Estimator Plus every 4 months. Both last shipped on October 17, 2026.

Scorecard3 real differences · 7 level
STI Tx Guide versus CVD Risk Estimator Plus: the parameters behind the verdict, then further details
ParameterSTI Tx GuideCVD Risk Estimator Plus
PriceFreeFree
Rating3.5 (36 ratings)5.0 (1 ratings) — better
Positive reviews35.7% of reviews — better31.6% of reviews
Number of ratings36 — better1
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size36 MB59 MB
Age rating12+17+
DeveloperCenters For Disease Control and PreventionAmerican College of Cardiology

Customer experience

STI Tx Guide

All ratings36 ratings
Positive63.9%
Neutral2.8%
Negative33.3%
Written reviews14 reviews
Positive35.7%
Neutral7.1%
Negative57.1%

CVD Risk Estimator Plus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews38 reviews
Positive31.6%
Neutral23.7%
Negative44.7%

In-app purchases

None

STI Tx Guide

No in-app purchases

None

CVD Risk Estimator Plus

No in-app purchases

Questions

Is STI Tx Guide free?
STI Tx Guide is free to download, with no in-app purchases.
Is CVD Risk Estimator Plus free?
CVD Risk Estimator Plus is free to download, with no in-app purchases.
Which has better reviews, STI Tx Guide or CVD Risk Estimator Plus?
CVD Risk Estimator Plus is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while CVD Risk Estimator Plus averages 5.0 from 1 ratings.
Do STI Tx Guide or CVD Risk Estimator Plus have ads?
Neither STI Tx Guide nor CVD Risk Estimator Plus shows ads.
Which is updated more often, STI Tx Guide or CVD Risk Estimator Plus?
STI Tx Guide ships an update every 2 months, and CVD Risk Estimator Plus every 4 months. Most recently, STI Tx Guide was updated on October 17, 2026 and CVD Risk Estimator Plus on October 17, 2026.

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