Comparison

eResearch vs REMAIN!

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

Head to head
About

eResearch

Participate in clinical research from home to help advance smoking cessation and harm reduction. This platform connects volunteers with studies focused on nicotine addiction, offering remote participation, online consent, and compensation. Advance science and contribute to a healthier future.

Highlights
  • Volunteer registration for nicotine users
  • Online eConsent process
  • Compensation for participation
  • Remote study assessments
  • Telemedicine visits
  • Secure participant communication
Features
Read full description

Join the eResearch community of clinical research volunteers to help end the addiction to cigarettes. eResearch is the first mobile clinical research platform that helps advance research in smoking cessation and harm reduction. Led by Dr. Jed Rose, co-inventor of the nicotine skin patch, Rose Research Center, LLC (RRC) enables at-home, remote participation in clinical research studies. By using eResearch you can participate in clinical trials which focus on researching nicotine addiction and smoking cessation. Today, the Surgeon General still lists cigarette smoking as the #1 leading preventable cause of death in the United States(1). At RRC we hope to make this statistic a thing of the past. Features Volunteer – We are seeking individuals, 21 years and older, that use nicotine containing products to volunteer by registering with the eResearch app. Simply provide your contact information and answer a few questions regarding your nicotine usage history. This information will help match you to current and future clinical studies. Participation – When matched with a study, eResearch allows you to enroll by providing your consent through our 100% online eConsent process. You can stop, or choose not to participate, at any time. Remember, your participation is always voluntary! Studies vary, and RRC offers new research studies all the time. As new studies launch, you can opt in for alerts to those in which you may be a good match. If I Participate, what does this app do? 1. Payments – Compensation is provided for study participation. eResearch utilizes an electronic payment gateway to pay you for your involvement. 2. Study Assessments – We may ask you to check in with us from time to time to see how you are feeling and progressing with the study. These assessments (also called remote visits) are scheduled in advance with our team of researchers. 3. Communication – Using eResearch, you can stay in touch with our study team. Our clinical research team will schedule appointments with participants throughout your participation in a study. Inside eResearch, Contact Us information includes phone numbers to reach study personnel and medical emergency phone numbers. 4. Telemedicine – Live telemedicine visits may be conducted through eResearch to engage with you just as if your study visit had been conducted in-person. Participants may meet with research or board-certified medical personnel, depending on the type of visit. Participant safety is our highest priority. Additionally, your volunteer information is kept confidential and is not shared with third parties. All research conducted by RRC is reviewed by an independent Institutional Review Board. Additionally, all studies are registered with clinicaltrials.gov and meet the requirements of Good Clinical Practice. (1) US Centers for Disease Control and Prevention. https://www.cdc.gov/tobacco/data_statistics/fact_sheets/fast_facts/index.htm

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

eResearch4 screens
REMAIN!3 screens

Verdict

The call

The clearest difference is rating: eResearch at 4.7 against REMAIN!'s 4.0. eResearch also leads on ratings volume (85 vs 4). REMAIN!'s advantage is monetization model (free vs free with in-app purchases). 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

eResearch holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: eResearch has 85 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
eResearch versus REMAIN!: the parameters behind the verdict, then further details
ParametereResearchREMAIN!
PriceFreeFree
Rating4.7 (85 ratings) — better4.0 (4 ratings)
Positive reviews89.7% of reviews—
Number of ratings85 — better4
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size136 MB46 MB
Age rating17+17+
DeveloperRose Research Center,LLCFlorida State University

Customer experience

eResearch

All ratings75 ratings
Positive92.0%
Neutral1.3%
Negative6.7%
Written reviews39 reviews
Positive89.7%
Neutral0.0%
Negative10.3%

REMAIN!

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

Bugs and requests

eResearch

Reported bugs

3 issues
  • Difficult to reset email
  • App notifications cannot be turned on outside the app
  • Surveys sometimes not sent

Requested features

1 request
  • Allow users to turn on app notifications outside the app

REMAIN!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

eResearch

No in-app purchases

None

REMAIN!

No in-app purchases

Questions

Is eResearch free?
eResearch 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, eResearch or REMAIN!?
eResearch is rated higher. eResearch averages 4.7 out of 5 from 85 ratings, while REMAIN! averages 4.0 from 4 ratings.
Do eResearch or REMAIN! have ads?
Neither eResearch nor REMAIN! shows ads.
Which is updated more often, eResearch or REMAIN!?
eResearch ships an update every 5 weeks, and REMAIN! every 5 weeks. Most recently, eResearch was updated on October 25, 2026 and REMAIN! on October 24, 2026.

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