Comparison

edX online learning vs The Happiness Project

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

Head to head
About

edX online learning

Access thousands of online courses and degree programs from top universities and companies. Upskill in critical disciplines, strengthen your resume, and advance your career on your own schedule. Stream content, download materials, and test your knowledge with quizzes and exams.

Highlights
  • Thousands of courses and programs
  • World-class academic and industry partners
  • Career skill development
  • Professional certificate programs
  • Degree programs
  • Stream online courses
  • Download course materials
Features
Read full description

edX is the online learning platform that prepares you for every career moment. Register for free, and get immediate access to: * Education for every budget and background. Choose from thousands of courses and programs — from free courses to full degrees — that match your personal, professional, and financial needs. * World-class academic and industry partners. Discover immersive programs from Harvard, Amazon, Google, MIT, IBM, and hundreds of other exceptional institutions around the world. * Learning that drives meaningful career outcomes. Upskill in dozens of critical disciplines — like AI, supply chain management, and sustainability — to build a résumé-redefining skill set. It’s never too late or too early to join edX. Our courses and programs meet you where you are in your professional trajectory. You can: * Switch industries. Launch, change, or advance your tech career with immersive boot camps. * Strengthen your résumé. Deepen your expertise and showcase your skills with professional certificate programs. * Level up as a leader. Learn to lead initiatives and teams with executive education programs. * Earn a degree. Unlock new career opportunities with master’s, doctorate, and undergraduate degree programs. Make your next career move on your schedule. With edX’s free mobile app, you can: * Stream online courses in AI, cybersecurity, data science, and more. * Download course materials and transcripts for uninterrupted access. * Test your knowledge with quizzes, assignments, and exams. * Discover and enroll in new courses and programs as your skills evolve. Visit: edx.org Like: facebook.com/edx Follow: x.com/edxonline and instagram.com/edxonline

About

The Happiness Project

Engage in short, enjoyable mini-games designed by scientists to contribute to real psychological and neuroscience research. Your gameplay and anonymous survey responses help study well-being, anxiety, and depression.

Highlights
  • Play mini-games for science
  • Contribute to psychology research
  • Study neuroscience of well-being
  • Anonymous surveys
  • Understand mental health
  • Citizen science project
Features
Read full description

Play fun mini-games to help brain scientists study the psychology and neuroscience of well-being! Created by scientists at UCL and Yale, this app is a citizen science project taking psychology and neuroscience experiments from the lab to your smartphone. Every 3-minute game that you finish contributes data to real scientific research about how the brain works. The anonymous surveys help us see what causes well-being and understand mental health conditions like anxiety and depression. Be part of a unique citizen science experiment and help us write the equation for happiness! Dr Robb Rutledge (Yale Psychology) says: "We all want to know what determines happiness. It’s hard to figure it out! In our games, we ask people about their happiness as they make decisions in different situations. We hope people enjoy our app and help us answer some really important scientific questions!" This citizen science project was supported by the UK Medical Research Council.

Screenshots

edX online learning4 screens
The Happiness Project4 screens

Verdict

The call

The clearest difference is review sentiment: edX online learning at 82% against The Happiness Project's 33%. edX online learning also leads on rating (4.8 vs 3.9) and ratings volume (11K vs 42). The Happiness Project's advantage is in-app purchases (none vs 10) and iOS requirement (13.0 vs 15.0). On price, ads and device support 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. edX online learning sells 9 one-off in-app purchases. The Happiness Project asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

edX online learning holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: edX online learning has 11K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 82% of edX online learning's written reviews are positive against 33% of The Happiness Project's.

UpkeepUpdate frequency

edX online learning ships an update every 5 weeks, The Happiness Project every 5 months. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
edX online learning versus The Happiness Project: the parameters behind the verdict, then further details
ParameteredX online learningThe Happiness Project
PriceFreeFree
Rating4.8 (11K ratings) — better3.9 (42 ratings)
Positive reviews81.9% of reviews — better33.3% of reviews
Number of ratings11K — better42
Update frequencyEvery 5 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size56 MB99 MB
Age rating12+12+
DeveloperedX LLCUCL

Customer experience

edX online learning

All ratings10,742 ratings
Positive95.1%
Neutral1.4%
Negative3.6%
Written reviews1,858 reviews
Positive81.9%
Neutral5.9%
Negative12.2%

The Happiness Project

All ratings42 ratings
Positive69.0%
Neutral11.9%
Negative19.0%
Written reviews12 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

Bugs and requests

edX online learning

Reported bugs

4 issues
  • Videos not playing or freezing
  • Frequent app crashes or refreshes
  • Login issues and loss of course progress
  • Incompatibility with certain devices

Requested features

5 requests
  • Improved progress tracking and bookmarking
  • Split-screen support for note-taking
  • Offline mode for all course content
  • Better search and filtering options
  • Seamless sync between app and website

The Happiness Project

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

edX online learning

One-time9
  • Upgrade Course$29.00
  • Upgrade Course$49.00
  • Upgrade Course$59.00
Show 6 more
  • Upgrade Course$99.00
  • Upgrade Course$149.00
  • Upgrade Course$189.00
  • Upgrade Course$209.00
  • Upgrade Course2 variants$219.00
  • Upgrade Course$299.00
None

The Happiness Project

No in-app purchases

Questions

Is edX online learning free?
edX online learning is free to download, with in-app purchases available.
Is The Happiness Project free?
The Happiness Project is free to download, with no in-app purchases.
Which has better reviews, edX online learning or The Happiness Project?
edX online learning is rated higher. edX online learning averages 4.8 out of 5 from 11K ratings, while The Happiness Project averages 3.9 from 42 ratings.
Do edX online learning or The Happiness Project have ads?
Neither edX online learning nor The Happiness Project shows ads.
Which is updated more often, edX online learning or The Happiness Project?
edX online learning ships an update every 5 weeks, and The Happiness Project every 5 months. Most recently, edX online learning was updated on November 9, 2026 and The Happiness Project on November 2, 2026.

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