Comparison

Chloe by People Science vs Project PROTECTS

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

Head to head
About

Chloe by People Science

This app empowers individuals to discover which alternative medicines work best for them through active and passive data collection. It supports research into cannabinoids, psychedelics, supplements, and more, making clinical evidence generation easier and more affordable.

Highlights
  • Personalized alternative medicine insights
  • Active and passive data collection
  • Research on cannabinoids and psychedelics
  • Supports supplement and nutraceutical studies
  • Digital health solutions integration
  • Empowers informed health decisions
Features
Read full description

People Science is a technology-enabled clinical research organization with a mission to empower humanity with the tools and knowledge of science and medicine to improve ourselves, our communities, and our world. We are dedicated to enhancing public health through technology-assisted medical scientific research and education. In an era where people are increasingly seeking health betterment and alternative solutions, our new infrastructure of data collection and analysis supports scaled direct-to-consumer research and development for alternative medicines. Our focus includes cannabinoids, microbiome interventions, supplements and nutraceuticals, natural and synthetic psychedelics, nutrition and “food as medicines,” and digital health solutions. Our research platform, Chloe, engages individual participants in the clinical research process through active and passive data collection on their personal devices. This empowers individuals to find answers to the question, “Which alternative medicines work best for me?” while also making scaled clinical evidence generation easier and more affordable for consumer brands, manufacturers, biotech and biopharma, and academic researchers. At People Science, we believe in democratizing science and knowledge, giving more people the opportunity to ask questions and have their voices heard. We aim to empower individuals with the tools of science and medicine so they can seek answers for themselves and make informed decisions about their health and well-being. Science is a powerful tool, and we’re here to help determine the effectiveness of alternative medicines, bridging the gap of evidence needed for the delivery of Wellness and Prevention in our current healthcare system.

About

Project PROTECTS

This research study invites adults in the US to help understand the effects of respiratory infections. Participants need a smartphone, email, and internet access to contribute to vital health research.

Highlights
  • Participate in health research
  • Understand infection effects
  • Smartphone required
  • US-based eligibility
  • Contribute to scientific understanding
Features
Read full description

Project PROTECTS is inviting 6,000 adults across the United States to help researchers better understand the short- and long-term effects of respiratory infections. Project PROTECTS is a collaboration between researchers at the City University of New York (CUNY) Institute for Implementation Science in Population Health (ISPH) and Pfizer. You are eligible to participate in Project PROTECTS if you: - Are 18 years or older - Live in a US state, DC, or Puerto Rico - Have a personal smartphone with a working camera - Have a personal email address - Have internet access If you have any questions, comments, or concerns about the research, you can contact a study coordinator at: ProjectProtects@sph.cuny.edu

Screenshots

Chloe by People Science3 screens
Project PROTECTS4 screens

Verdict

The call

Chloe by People Science and Project PROTECTS both sit at 3.8 stars, but that hides the real split: 67% of Project PROTECTS's written reviews are positive against 50% of Chloe by People Science's. Chloe by People Science's advantage is ratings volume (20 vs 3). On price, rating, update cadence and ads 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

On the App Store both sit at effectively the same score — 3.8 for Chloe by People Science against 3.7 for Project PROTECTS. That said, the two scores are not equally well evidenced: Chloe by People Science has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 50% of Chloe by People Science's written reviews are positive against 67% of Project PROTECTS's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Chloe by People Science versus Project PROTECTS: the parameters behind the verdict, then further details
ParameterChloe by People ScienceProject PROTECTS
PriceFreeFree
Rating3.8 (20 ratings) — better3.7 (3 ratings)
Positive reviews50.0% of reviews66.7% of reviews — better
Number of ratings20 — better3
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size80 MB80 MB
Age rating17+17+
DeveloperPeople Science, Inc.Vibrent Health, Inc.

Customer experience

Chloe by People Science

All ratings18 ratings
Positive72.2%
Neutral0.0%
Negative27.8%
Written reviews10 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Project PROTECTS

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Chloe by People Science

No in-app purchases

None

Project PROTECTS

No in-app purchases

Questions

Is Chloe by People Science free?
Chloe by People Science is free to download, with no in-app purchases.
Is Project PROTECTS free?
Project PROTECTS is free to download, with no in-app purchases.
Which has better reviews, Chloe by People Science or Project PROTECTS?
Chloe by People Science is rated higher. Chloe by People Science averages 3.8 out of 5 from 20 ratings, while Project PROTECTS averages 3.7 from 3 ratings.
Do Chloe by People Science or Project PROTECTS have ads?
Neither Chloe by People Science nor Project PROTECTS shows ads.
Which is updated more often, Chloe by People Science or Project PROTECTS?
Chloe by People Science ships an update monthly, and Project PROTECTS monthly. Most recently, Chloe by People Science was updated on November 3, 2026 and Project PROTECTS on October 30, 2026.

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