Comparison

UCSF Eureka Research vs MyDataHelps

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

Head to head
About

UCSF Eureka Research

Participate in real medical research studies from your smartphone to help solve major health issues. Contribute to world-changing research with top universities and make a significant impact on causes you care about.

Highlights
  • Join medical research studies
  • Contribute to health problem solutions
  • Participate via smartphone
  • Support top research universities
  • Track impact on health causes
Features
Read full description

Eureka makes it easy to join real medical studies and help solve the world’s biggest health problems—including heart disease, diabetes, cancer, mental illness, healthcare inequities and more. It’s now easier than ever to have a big impact on causes you care about . All it takes to contribute to world-changing research with Eureka is a smartphone and a little bit of free time. Team up with millions of other study participants helping top researchers from research universities like UCSF, Harvard, and Johns Hopkins to answer questions like, “What signals from my smartphone might predict heart disease?” and “How does physical activity affect cancer risk?” Eureka is a non-profit resource built by researchers at the University of California, San Francisco with support from the National Institutes of Health. If you have questions about signing up or your current participation, reach out to us at support@eurekaplatform.org. For the studies that are on our app, we are not currently pulling HealthKit data but are collecting approval for future use. We use the CareKit framework in our application but do not connect to it in any other way.

About

MyDataHelps

Harness your health data to advocate for your well-being. Connect information from wearables and medical records, and contribute to health research projects. Track symptoms and share trends with healthcare providers.

Highlights
  • Connect Apple Health and Fitbit data
  • Retrieve medical records
  • Participate in health projects
  • Track symptoms for chronic conditions
  • Generate symptom trend reports
  • Share data with healthcare providers
Features
Read full description

Understand your health. Power the next breakthrough. Bring together data from your wearables, medical records, and daily habits in one secure place, and put that information to work for you and for science. • See the full picture of your health. Connect wearables and health apps (Apple Health, Google Health, and more), access medical records from 90%+ of U.S. hospitals and plans, and track trends over time. • Take control with powerful tracking tools. Track symptoms, triggers, and treatments. Stay ahead of asthma flare-ups. Spot trends, generate reports, and share what matters with your care team. • Contribute to research that matters. Join studies exploring heart health, respiratory disease, mental health, and more—while staying in control of what you share. Trusted by 2.5M+ participants and leading research programs. Some projects may ask for your location data. You can always decide not to share this information.

Screenshots

UCSF Eureka Research4 screens
MyDataHelps4 screens

Verdict

The call

The clearest difference is rating: MyDataHelps at 4.4 against UCSF Eureka Research's 3.1. MyDataHelps also leads on review sentiment (43% vs 22%). UCSF Eureka Research's advantage is iOS requirement (14.0 vs 17.6). On price, ratings volume, 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

MyDataHelps holds the better App Store score, 4.4 against 3.1. Both are backed by a comparable volume of ratings — 329 and 304 respectively. Written reviews point the same way: 22% of UCSF Eureka Research's written reviews are positive against 43% of MyDataHelps's.

UpkeepUpdate frequency

UCSF Eureka Research ships an update every 5 weeks, MyDataHelps monthly. The most recent releases landed on September 4, 2026 and September 26, 2026 respectively.

Scorecard3 real differences · 7 level
UCSF Eureka Research versus MyDataHelps: the parameters behind the verdict, then further details
ParameterUCSF Eureka ResearchMyDataHelps
PriceFreeFree
Rating3.1 (329 ratings)4.4 (304 ratings) — better
Positive reviews22.2% of reviews43.2% of reviews — better
Number of ratings329 — better304
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple WatchiPhone, iPad, Apple Watch
Requires iOS14.0 — better17.6
Further details — not scored
Size61 MB58 MB
Age rating17+12+
DeveloperUniversity of California at San FranciscoCareEvolution

Customer experience

UCSF Eureka Research

All ratings329 ratings
Positive47.1%
Neutral11.2%
Negative41.6%
Written reviews117 reviews
Positive22.2%
Neutral16.2%
Negative61.5%

MyDataHelps

All ratings304 ratings
Positive84.2%
Neutral7.2%
Negative8.6%
Written reviews37 reviews
Positive43.2%
Neutral8.1%
Negative48.6%

User reviews

UCSF Eureka Research

From 329 App Store ratings

What we love

  • 🚀 Smooth performance
  • 👍 Easy to use
  • 💡 Allows participation in multiple studies
  • 👍 Reassuring to be run by academic institution

Room to improve

  • 🐛 Crashes frequently
  • 🔋 High battery consumption
  • 🔒 Concerns about data security and privacy
  • 👎 Buggy and unstable
  • 👎 Unreliable login and password reset functionality

MyDataHelps

From 304 App Store ratings

What we love

  • 👍 Easy to use symptom tracker
  • 💡 Generates free PDF reports with graphs
  • 👍 Customizable symptoms and treatments
  • 💡 Contributes to research studies
  • 👍 Great for chronic illnesses

Room to improve

  • 🐛 App won't open after updates
  • 🐛 Impossible to cancel membership
  • 🐛 Difficult to delete account
  • 🐛 Doesn't work well with Apple Watch
  • 🐛 No help feature or tech support

Bugs and requests

UCSF Eureka Research

Reported bugs

4 issues
  • App crashes during data entry
  • Login issues, unable to reset password
  • Incompatible with certain devices (e.g., jailbroken, older devices)
  • Unexpected behavior when trying to opt out or delete account

Requested features

4 requests
  • Improve stability and reliability
  • Provide better instructions and guidance
  • Add support for international users
  • Improve battery optimization

MyDataHelps

Reported bugs

25 issues
  • App won't open after latest updates
  • App is worse than useless, impossible to cancel or remove
  • App is hard to delete
  • App claims to work with Apple Watch but doesn't
  • App has no Help feature or way to get tech support
Show 20 more
  • App has loading errors and is unreliable
  • App connects to '.dev' api when logging in
  • App is broken for COVID test documentation, site loads indefinitely
  • Print is too small to read, cannot magnify
  • Poor performing app since the last update, takes 5 minutes to open
  • App continues to show 'Tasks' as being overdue
  • FitBit login won't complete, returns to login screen
  • Can't log in due to server issues
  • Data error when submitting info, cannot proceed
  • App keeps crashing, won't let me finish registration
  • Study Hotline hyperlink doesn't work
  • The 'done' button is greyed out when trying to add booster dates
  • App shows spinning daisy and never refreshes, unable to connect to server
  • No way to add a booster shot
  • No place to record a third COVID vaccine (booster)
  • Cannot log in due to server issues
  • Tried to sign up 4 times, got an error each time
  • Not listing resting heart rate for the last month
  • App support/website lead nowhere useful
  • Cannot edit symptoms on the 'Track illness' feature

Requested features

8 requests
  • Add ability to record additional COVID vaccine boosters
  • Allow symptom changes during prolonged illness
  • Way to earn points for rewards (PayPal, gift cards)
  • Edit symptoms on 'Track illness' feature
  • Export lab and clinical data to Apple Health
Show 3 more
  • Synchronize with Garmin devices
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

None

UCSF Eureka Research

No in-app purchases

None

MyDataHelps

No in-app purchases

Questions

Is UCSF Eureka Research free?
UCSF Eureka Research is free to download, with no in-app purchases.
Is MyDataHelps free?
MyDataHelps is free to download, with no in-app purchases.
Which has better reviews, UCSF Eureka Research or MyDataHelps?
MyDataHelps is rated higher. UCSF Eureka Research averages 3.1 out of 5 from 329 ratings, while MyDataHelps averages 4.4 from 304 ratings.
Do UCSF Eureka Research or MyDataHelps have ads?
Neither UCSF Eureka Research nor MyDataHelps shows ads.
Which is updated more often, UCSF Eureka Research or MyDataHelps?
UCSF Eureka Research ships an update every 5 weeks, and MyDataHelps monthly. Most recently, UCSF Eureka Research was updated on September 4, 2026 and MyDataHelps on September 26, 2026.

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