# USPSTF Prevention TaskForce vs CTC

The clearest difference is price: USPSTF Prevention TaskForce at Free against CTC's $3.99. USPSTF Prevention TaskForce also leads on in-app purchases (none vs 1). On review sentiment, update cadence, ads and device support there is nothing between them.

USPSTF Prevention TaskForce is free to download; CTC costs $3.99 up front. CTC sells 1 one-off in-app purchase. USPSTF Prevention TaskForce asks for nothing beyond the download.

USPSTF Prevention TaskForce ships an update every 3 months, CTC every 2 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | USPSTF Prevention TaskForce | CTC |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[3.6 (68 ratings)](https://appshunter.io/ios/app/uspstf-prevention-taskforce/id311852560/reviews)** | — |
| Number of ratings | **68** | — |
| Positive reviews | **63.5% of reviews** | 55.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 13 MB | 2 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [AHRQ](https://appshunter.io/developer/311852563) | [Arpacore B.V.](https://appshunter.io/developer/1441928570) |

## What reviewers say

### USPSTF Prevention TaskForce

[App page](https://appshunter.io/ios/app/uspstf-prevention-taskforce/id311852560)

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.

**Highlights:** Access USPSTF recommendations, Search by patient characteristics, Identify screening services, Find counseling services, Discover preventive medications

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Essential for primary care
- 👍 Great evidence-based resource
- 👍 Useful for students and clinicians
- 👍 Well-organized and easy to use
- 👍 Quick reference tool

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Outdated recommendations
- 🐛 Inaccurate/broken recommendations
- 🐛 UI needs update
- 🐛 Not working with latest iOS

**Reported bugs**

- App crashes on startup
- Recommendations are broken/inaccurate
- App not compatible with recent iOS updates
- Menu won't stay open
- Unable to download

**Requested features**

- Update recommendations
- Add more units of measurement (kg/meters)
- Update for dark mode
- Improve UI/UX
- Add more diseases to profile


### CTC

[App page](https://appshunter.io/ios/app/ctc-ae-plus/id349258523)

This medical reference app provides quick access to standardized adverse event criteria and grading scales for oncology research. It allows for efficient logging, tracking, and reporting of patient events, including performance scores and custom entries. Data is kept strictly on-device for privacy and compliance.

**Highlights:** CTCAE v4 and v5 reference, Performance score integration (Karnofsky, ECOG, Lansky), Advanced adverse event logger, Custom event creation, CSV data import/export, On-device data storage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Adverse Event Logger | $3.99 | one-time |


## Frequently asked questions

### Is USPSTF Prevention TaskForce free?

USPSTF Prevention TaskForce is free to download, with no in-app purchases.

### Is CTC free?

CTC costs $3.99, and also offers in-app purchases.

### Do USPSTF Prevention TaskForce or CTC have ads?

Neither USPSTF Prevention TaskForce nor CTC shows ads.

### Which is updated more often, USPSTF Prevention TaskForce or CTC?

USPSTF Prevention TaskForce ships an update every 3 months, and CTC every 2 months. Most recently, USPSTF Prevention TaskForce was updated on October 12, 2026 and CTC on October 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.*