USPSTF Prevention TaskForce vs Bayes' post
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USPSTF Prevention TaskForce
This app provides primary care clinicians with evidence-based recommendations for preventive services. It helps identify appropriate screening, counseling, and medication services for patients based on their individual characteristics.
- Access USPSTF recommendations
- Search by patient characteristics
- Identify screening services
- Find counseling services
- Discover preventive medications
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The Prevention TaskForce (formerly ePSS) is an application designed and developed by the U.S. Department of Health & Human Services (HHS), Agency for Healthcare Research and Quality (AHRQ), the Nation's lead Federal agency for research on health care quality, costs, outcomes and patient safety. It was developed by AHRQ to support the independent U.S. Preventive Services Task Force (USPSTF). The USPSTF is an independent, volunteer panel of national experts in prevention and evidence-based medicine. AHRQ provides support to the USPSTF. The Prevention TaskForce application was developed to assist primary care clinicians identify the screening, counseling, and preventive medication services that are appropriate for their patients. The Prevention TaskForce information is based on the current recommendations of the U.S. Preventive Services Task Force (USPSTF) and can be searched by specific patient characteristics, such as age, sex, and selected behavioral risk factors. When using this tool please read the specific recommendation to determine if the preventive service is appropriate for your patient. This tool is not meant to replace clinical judgment and individualized patient care. *Application downloads and data updates require internet connectivity
Bayes' post
This medical app calculates the probability of a disease after a diagnostic test. It uses pre-test probability, test sensitivity, and specificity to determine post-test probabilities for both positive and negative results.
- Calculate post-test probability
- Input pre-test probability
- Use test sensitivity
- Use test specificity
- Analyze positive results
- Analyze negative results
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Bayes’ post-test probability calculator, an iPhone / iPod touch application, calculates the post-test probability of diseases from pre-test probability and sensitivity of the test and specificity of the test. positive result: post-test probability for positive result negative result: post-test probability for negative result
Screenshots
Verdict
The clearest difference is update cadence: USPSTF Prevention TaskForce at every 3 months against Bayes' post's every 23 months. USPSTF Prevention TaskForce also leads on ratings volume (68 vs 3) and review sentiment (63% vs 50%). Bayes' post's advantage is iOS requirement (9.0 vs 18.0). On price, rating, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.6 for USPSTF Prevention TaskForce against 3.7 for Bayes' post. That said, the two scores are not equally well evidenced: USPSTF Prevention TaskForce has 68 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 63% of USPSTF Prevention TaskForce's written reviews are positive against 50% of Bayes' post's.
USPSTF Prevention TaskForce ships an update every 3 months, Bayes' post every 23 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.
| Parameter | USPSTF Prevention TaskForce | Bayes' post |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (68 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 63.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 68 — better | 3 |
| Update frequency | Every 3 months — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 18.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 20 MB |
| Age rating | 4+ | 12+ |
| Developer | AHRQ | Keiji Matsui |
Customer experience
USPSTF Prevention TaskForce
Bayes' post
Bugs and requests
USPSTF Prevention TaskForce
Reported bugs
9 issues- App crashes on startup
- Recommendations are broken/inaccurate
- App not compatible with recent iOS updates
- Menu won't stay open
- Unable to download
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- Recommendations won't load
- Non-functioning links
- Does not filter correctly
- Resets everything when going back to home page
Requested features
6 requests- Update recommendations
- Add more units of measurement (kg/meters)
- Update for dark mode
- Improve UI/UX
- Add more diseases to profile
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- Faster loading times
Bayes' post
Not enough reviews yet to summarise bugs or requests.
In-app purchases
USPSTF Prevention TaskForce
No in-app purchases
Bayes' post
No in-app purchases
Questions
Is USPSTF Prevention TaskForce free?
Is Bayes' post free?
Which has better reviews, USPSTF Prevention TaskForce or Bayes' post?
Do USPSTF Prevention TaskForce or Bayes' post have ads?
Which is updated more often, USPSTF Prevention TaskForce or Bayes' post?
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