USPSTF Prevention TaskForce vs Snellen test
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
Snellen test
This app uses augmented reality to display a Snellen eye chart for visual acuity testing. It allows users to adjust the chart's size and position from a distance, simulating a professional eye exam. Ideal for quick vision checks at home.
- Augmented reality Snellen chart
- Adjustable chart size and position
- Remote control via device camera
- Distance simulation for testing
- Customizable display options
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The Snellen chart is a widely used tool for measuring visual acuity. Named after the Dutch ophthalmologist Herman Snellen, who created it in 1862, this chart helps assess eyesight. To get started, choose a vertical surface to display the chart, stand 6 meters away, and aim your device’s rear camera at the surface. Once the chart loads, you can adjust its position and size via the control panel or directly on the screen using drag-and-drop, rotate with two fingers, or zoom in/out gestures. Need to switch surfaces? Just tap the button with the two circular arrows. You can also mute the sound or hide help texts using the appropriate buttons.
Screenshots
Verdict
The clearest difference is review sentiment: USPSTF Prevention TaskForce at 63% against Snellen test's 0%. USPSTF Prevention TaskForce also leads on price (Free vs $0.99). Snellen test's advantage is iOS requirement (13.2 vs 18.0). On update cadence, ads, in-app purchases and device support 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
USPSTF Prevention TaskForce is free to download; Snellen test costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
USPSTF Prevention TaskForce ships an update every 3 months, Snellen test every 4 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.
| Parameter | USPSTF Prevention TaskForce | Snellen test |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.6 (68 ratings) — better | — |
| Positive reviews | 63.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 68 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | AHRQ | Oleg Drobyshev |
Customer experience
USPSTF Prevention TaskForce
Snellen test
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
Show 1 moreShow fewer
- Faster loading times
Snellen test
Not enough reviews yet to summarise bugs or requests.
In-app purchases
USPSTF Prevention TaskForce
No in-app purchases
Snellen test
No in-app purchases
Questions
Is USPSTF Prevention TaskForce free?
Is Snellen test free?
Do USPSTF Prevention TaskForce or Snellen test have ads?
Which is updated more often, USPSTF Prevention TaskForce or Snellen test?
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