Comparison

HMP LITE vs DXJ

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

Head to head
About

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.

Highlights
  • Participant engagement
  • PrEP adherence support
  • Game-based economy
  • Weekly feature highlights
  • Dynamic content updates
Features
Read full description

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.

About

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.

Highlights
  • Share disease journey
  • Earn cash rewards
  • Short monthly surveys
  • Anonymous patient responses
  • Secure and private
  • Cancel anytime
Features
Read full description

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

HMP LITE3 screens
DXJ4 screens

Verdict

The call

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

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

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
HMP LITE versus DXJ: the parameters behind the verdict, then further details
ParameterHMP LITEDXJ
PriceFreeFree
Rating3.7 (9 ratings) — better2.3 (55 ratings)
Positive reviews—13.9% of reviews
Number of ratings955 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115 — better
Further details — not scored
Size51 MB65 MB
Age rating17+4+
DeveloperFlorida State UniversityrXperius

Customer experience

HMP LITE

All ratings9 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

DXJ

All ratings56 ratings
Positive26.8%
Neutral8.9%
Negative64.3%
Written reviews36 reviews
Positive13.9%
Neutral8.3%
Negative77.8%

In-app purchases

None

HMP LITE

No in-app purchases

None

DXJ

No in-app purchases

Questions

Is HMP LITE free?
HMP LITE is free to download, with no in-app purchases.
Is DXJ free?
DXJ is free to download, with no in-app purchases.
Which has better reviews, HMP LITE or DXJ?
HMP LITE is rated higher. HMP LITE averages 3.7 out of 5 from 9 ratings, while DXJ averages 2.3 from 55 ratings.
Do HMP LITE or DXJ have ads?
Neither HMP LITE nor DXJ shows ads.
Which is updated more often, HMP LITE or DXJ?
HMP LITE ships an update every 6 weeks, and DXJ every 2 weeks. Most recently, HMP LITE was updated on October 25, 2026 and DXJ on October 21, 2026.

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