Comparison

YPrime vs REMAIN!

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

Head to head
About

YPrime

Manage your clinical study tasks conveniently from your personal device. Log in using your enrollment ID to complete training and stay connected to your study activities, fitting them into your daily schedule.

Highlights
  • Log in and review study tasks
  • Complete clinical study activities
  • Manage tasks at your own pace
  • Stay connected to your study
  • Use on personal devices
Features
Read full description

Log in, review, and finish clinical study activities at places and times that fit your daily lifestyle. Download this app on your personal device. Use the enrollment ID provided by your healthcare provider to create your unique login code, then finish your training. Stay connected to your clinical study by using YPrime. This app is only available to those taking part in a sponsored clinical study.

About

REMAIN!

This research study app provides health and wellness information and resources for adults in the United States. It covers various health and lifestyle topics to support users' diverse needs. Access requires a specific code provided through the research study.

Highlights
  • Health and wellness information
  • Lifestyle topic coverage
  • Research study participation
  • Resource provision
  • Targeted for US adults
Read full description

REMAIN is a research study app designed to provide health and wellness information and resources relevant to adults in the United States. REMAIN covers a range of health and lifestyle topics to support users’ diverse backgrounds and varying needs over time. The principal investigators for this study are Pamina Gorbach, DrPH, at the University of California, Los Angeles, Lisa Hightow-Weidman, MD, MPH, at Florida State University, and Sean Young, PhD, at the University of California, Irvine. The HMP platform was created by Lisa Hightow-Weidman, a public health scientist. HMP users need a code to open the app. To learn more about the study, email RemainApp@ph.ucla.edu. This mobile app is intended for informational, educational and research purposes only. No content in this app is intended to substitute for professional medical advice, diagnosis or treatment. While we do have board certified health care providers on our team, we are not YOUR health care provider. Participation in this app does not establish any kind of patient-client relationship. Although we strive to provide accurate general information, the content presented in the app is not a substitute for professional advice. Always seek the advice of YOUR physician or another qualified health care provider in your area with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never delay in seeking medical treatment because of something you read on this app. If you think you may have a medical emergency, immediately dial 911.

Screenshots

YPrime3 screens
REMAIN!3 screens

Verdict

The call

The clearest difference is rating: YPrime at 5.0 against REMAIN!'s 4.0. REMAIN!'s advantage is ratings volume (4 vs 1). On price, update cadence, 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

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

YPrime holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

YPrime ships an update every 3 weeks, REMAIN! monthly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
YPrime versus REMAIN!: the parameters behind the verdict, then further details
ParameterYPrimeREMAIN!
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (4 ratings)
Positive reviews50.0% of reviews—
Number of ratings14 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size109 MB44 MB
Age rating4+17+
DeveloperY-PrimeFlorida State University

Customer experience

YPrime

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

REMAIN!

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

YPrime

No in-app purchases

None

REMAIN!

No in-app purchases

Questions

Is YPrime free?
YPrime is free to download, with no in-app purchases.
Is REMAIN! free?
REMAIN! is free to download, with no in-app purchases.
Which has better reviews, YPrime or REMAIN!?
YPrime is rated higher. YPrime averages 5.0 out of 5 from 1 ratings, while REMAIN! averages 4.0 from 4 ratings.
Do YPrime or REMAIN! have ads?
Neither YPrime nor REMAIN! shows ads.
Which is updated more often, YPrime or REMAIN!?
YPrime ships an update every 3 weeks, and REMAIN! monthly. Most recently, YPrime was updated on October 4, 2026 and REMAIN! on October 11, 2026.

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