HMP LITE vs DXJ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HMP LITE
This research study app aims to improve participant engagement and adherence to HIV prevention medication. It features a game-based economy with rewards, weekly messages, and dynamic content to keep users involved over time.
- Participant engagement
- PrEP adherence support
- Game-based economy
- Weekly feature highlights
- Dynamic content updates
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LITE is a research study app designed to help engage and retain participants within the LITE HIV prevention study. It will support the overall study’s goal of supporting participants’ PrEP (pre-exposure prophylaxis) adherence over time through sustained platform engagement, weekly messages highlighting key app features, a game-based economy that awards badges for activities and milestones within the app, and continued development of content and activities to ensure the platform remains dynamic and fresh. LITE is an adaptation of the app, HMP, which covers a range of health and lifestyle topics to support users’ diverse backgrounds and varying needs over time. HMP was created by Lisa Hightow-Weidman, MD, MPH, a public health scientist. The principal investigators for this study are Dr. Sybil Hosek at Cook County Health, Dr. Audrey French at Cook County Health and Dr. Lisa Hightow-Weidman at the Institute on Digital Health and Innovation at Florida State University’s College of Nursing.
DXJ
Share your health journey and earn cash by completing short, monthly surveys. Your anonymous responses contribute to healthcare research while you get paid via Venmo. Privacy is paramount, with no personal information ever sold.
- Share disease journey
- Earn cash rewards
- Short monthly surveys
- Anonymous patient responses
- Secure and private
- Cancel anytime
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DXJ gives you the power to share your disease journey and make a difference. The DXJ app allows you to share the life events that occur along your disease journey and earn cash by answering quick monthly surveys. Designed for ease of use, it takes just a few minutes to complete each survey, and you'll be compensated via Tremendous. Your privacy is our top priority—no personal information is ever sold. Features: - Short and simple surveys/10 questions - Monthly updates with new questions - Anonymous patient responses - Secure and private - Earn cash rewards - Cancel anytime with ease How It Works: 1. Download app and register with a valid US ID. 2. Complete Background Profile/no personal information 3. Answer brief surveys about your health. 4. Earn cash rewards starting at $2 per survey (Rewards sent via email) Join DXJ today and make your voice heard in the healthcare industry while earning rewards! Privacy: Your data is protected. We do not sell your personal identifiable data. When you take a survey on DXJ, your answers are aggregated and shared with the company who wrote the survey questions. DXJ does not keep your ID information with the exception of your name to match with the name on your prescription . The survey data shared with companies whose medicine you take, is anonymous and not linked to any of your personal identifiable information. For more information regarding the privacy and terms of conditions for DXJ, review the privacy policy and terms and conditions on our app. The DXJ app is free to download and use.
Screenshots
Verdict
The clearest difference is rating: HMP LITE at 3.7 against DXJ's 2.3. DXJ's advantage is update cadence (every 2 weeks vs every 6 weeks) and ratings volume (55 vs 9). On price, ads, in-app purchases and monetization model 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.
HMP LITE holds the better App Store score, 3.7 against 2.3. That said, the two scores are not equally well evidenced: DXJ has 55 ratings behind it against 9, so its average is the more settled of the two.
HMP LITE ships an update every 6 weeks, DXJ every 2 weeks. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.
| Parameter | HMP LITE | DXJ |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (9 ratings) — better | 2.3 (55 ratings) |
| Positive reviews | — | 13.9% of reviews |
| Number of ratings | 9 | 55 — better |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15 — better |
| Further details — not scored | ||
| Size | 51 MB | 65 MB |
| Age rating | 17+ | 4+ |
| Developer | Florida State University | rXperius |
Customer experience
HMP LITE
DXJ
In-app purchases
HMP LITE
No in-app purchases
DXJ
No in-app purchases




