Comparison

ClinicalKey vs Eolas Medical

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

Head to head
About

ClinicalKey

This app provides medical professionals with instant access to a vast library of clinical knowledge, including synoptic content and in-depth reference materials. It helps users stay updated on medical advancements, confirm diagnoses, and advance their research skills, all while offering CME/MOC/CE credits.

Highlights
  • Access to 30+ medical specialties
  • Synoptic content for quick answers
  • Full-text reference books and journals
  • Mobile-optimized medical calculators
  • Earn CME/MOC/CE credits
  • Intuitive search functionality
Read full description

INSTITUTIONAL SUBSCRIPTION REQUIRED. Access the latest advances in clinical knowledge anytime, anywhere with ClinicalKey®- the essential resource for medical professionals. ClinicalKey combines the speed of synoptic content with the depth of a comprehensive clinical reference tool in one intuitive solution to provide clinicians trusted information in the moments that matter most. With ClinicalKey, you can: • Stay abreast of rapidly expanding clinical knowledge • Quickly confirm diagnosis and treatment information • Advance critical thinking skills and research Please note: To access our extensive content library, ensure you have a subscription to ClinicalKey from your organization. To get started: 1. Download the free ClinicalKey app for iOS on your iPad® or iPhone®. 2. Follow the prompts to connect to your organization’s account.The app will ask questions to get you to the right content. 3. Choose the method of access that is right for you: 4. Select Access via Network if you need a quick answer and your device is connected to your organization's network. 5. Select Access via Institution for other ways to connect. 6. Once you have gained access, create or sign- in to your Elsevier ClinicalKey user account to save favorites and earn CME/MOC/CE/MOC/CE. ClinicalKey® Because you want to find a better way to help your patients ClinicalKey combines the speed of synoptic content with the depth of a comprehensive clinical reference tool in one intuitive solution to give clinicians trusted information in the moments that matter. With the ClinicalKey, clinicians will be able to: • Enhance patient care with trusted resources and deep insights across 30+ specialties • Combine efficiency and confidence in your practice with access to quick answers and information that is continuously updated • Excel in your field by building foundational knowledge and keeping up with the latest trends through full-text reference books and journals, while earning free CME/MOC/CE credit • Stay abreast of rapidly expanding clinical knowledge • Quickly confirm diagnosis and treatment information • Advance critical thinking skills and research ClinicalKey App for iOS Features: • Trusted Comprehensive content covering more than 30 medical and surgical specialties • Easy-to-scan, clinically focused medical topic synopses • Intuitive search with auto-suggest/ • Easy search with auto-completion • Direct navigation to your favorite books and journals • Mobile-optimized medical calculators • Access to full-text books, full-text journals, guidelines, multimedia and more • Access via Institutional IP; individuals will not be able to earn CME/MOC/CE, save, or share content when using IP authentication. Please register for remote access via your institutional web version of ClinicalKey. ClinicalKey Registrants (non-IP) customers will enjoy: • Opportunity to earn CME and fulfill MOC requirements with the American Board of Internal Medicine (ABIM) • Ability to favorite and save content • Option to print and email topics, videos or graphics • Earn and track free CME/MOC/CE credit Ability to favorite and save content Print and email topics, videos or graphics to patients and colleagues iPad and iPhone are trademarks of Apple Inc, registered in the US and other countries.

About

Eolas Medical

This app provides healthcare professionals with access to essential guidelines, online learning modules, and resources. It aims to streamline educational processes, departmental induction, and knowledge sharing for increased efficiency.

Highlights
  • Access medical guidelines
  • Online learning modules
  • Streamline induction processes
  • Improve departmental teaching
  • Facilitate knowledge sharing
  • Enhance patient care resources
Features
Read full description

Eolas App is a tool to help innovate the way we educate our healthcare professionals and how we care for our patients. Access specific guidelines, online learning, and other useful resources from the palm of your hand. Streamline your department's induction and departmental teaching processes and knowledge sharing to save time and make everyone's work more efficient.

Screenshots

ClinicalKey4 screens
Eolas Medical4 screens

Verdict

The call

The clearest difference is monetization model: Eolas Medical at free against ClinicalKey's subscription. Eolas Medical also leads on update cadence (every 6 days vs every 5 weeks) and review sentiment (19% vs 9%). ClinicalKey's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.

UpkeepUpdate frequency

ClinicalKey ships an update every 5 weeks, Eolas Medical every 6 days. The most recent releases landed on October 16, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
ClinicalKey versus Eolas Medical: the parameters behind the verdict, then further details
ParameterClinicalKeyEolas Medical
PriceFreeFree
Rating—4.2 (376 ratings) — better
Positive reviews8.8% of reviews18.8% of reviews — better
Number of ratings—376 — better
Update frequencyEvery 5 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size55 MB149 MB
Age rating12+17+
DeveloperElsevier Inc.Eolas Medical LTD

Customer experience

ClinicalKey

Written reviews102 reviews
Positive8.8%
Neutral4.9%
Negative86.3%

Eolas Medical

All ratings376 ratings
Positive79.0%
Neutral2.7%
Negative18.4%
Written reviews64 reviews
Positive18.8%
Neutral3.1%
Negative78.1%

User reviews

ClinicalKey

From App Store reviews

What we love

  • 📚 High-quality, evidence-based clinical content
  • 🎯 Intuitive interface and quick reference format
  • 🔍 Similar functionality to website version
  • 👍 Browse feature restoration appreciated by users

Room to improve

  • 🔓 Constant forced logout issues
  • 🔐 Institutional login authentication failures
  • ⏳ App freezes and perpetual loading screens
  • 🚫 Missing textbook access in app vs website
  • 📵 Frequent crashes and force closures

Eolas Medical

From 376 App Store ratings

What we love

  • 👍 Comprehensive resource consolidation
  • 🎯 Centralized access to multiple guidelines
  • 💡 AI-powered search functionality
  • 📱 Free access to premium content
  • 🎨 Visually appealing interface

Room to improve

  • ❌ Excessive clicks to access WikEM
  • 🐌 Slow app performance and loading
  • 🗂️ Poor navigation and confusing layout
  • 🔗 Broken hyperlinks within articles
  • ❌ Bloated with unnecessary features

Bugs and requests

ClinicalKey

Reported bugs

14 issues
  • App stuck on loading screen after initial login
  • Forced logout when closing or minimizing app
  • Institutional login not working despite web access
  • App crashes during search queries
  • OpenAthens authentication failures
Show 9 more
  • Network change warnings appearing incorrectly
  • Search results returning unrelated content
  • Textbook search not finding available books
  • App won't load after recent updates
  • Blank search results for valid queries
  • Scrolling in table of contents sidebar not functioning
  • Landscape orientation not supported
  • App doesn't remember page position when reopened
  • Restricted access to books after updates

Requested features

10 requests
  • PDF download capability within the app
  • Favorite/bookmark textbooks and articles
  • Landscape mode support for iPad
  • Find-on-page text search function
  • Automatic session persistence and page memory
Show 5 more
  • Text size and screen color customization
  • Fingerprint/passcode login option
  • Browse feature with category filtering
  • Offline access to downloaded materials
  • Feature parity with website version

Eolas Medical

Reported bugs

9 issues
  • Broken hyperlinks within articles
  • Keyboard doesn't pop up automatically in search
  • Content fails to load on WiFi and data networks
  • App crashes or freezes on startup
  • Server connection drops during use
Show 4 more
  • Search suggestions don't auto-populate
  • WikEM inaccessible past loading screen
  • Inconsistent body systems display
  • Slow download attempts on app open

Requested features

10 requests
  • Restore standalone WikEM app
  • Reduce navigation steps to access WikEM
  • Implement dark mode/dark theme
  • Add favorites/bookmarking functionality
  • Improve search algorithm accuracy
Show 5 more
  • Enable offline content download
  • Add collaborative checklist features
  • Optimize iPad/tablet interface
  • Restore MDCalc integration
  • Simplify app navigation structure

In-app purchases

None

ClinicalKey

No in-app purchases

None

Eolas Medical

No in-app purchases

Questions

Is ClinicalKey free?
ClinicalKey is free to download, with no in-app purchases.
Is Eolas Medical free?
Eolas Medical is free to download, with no in-app purchases.
Do ClinicalKey or Eolas Medical have ads?
Neither ClinicalKey nor Eolas Medical shows ads.
Which is updated more often, ClinicalKey or Eolas Medical?
ClinicalKey ships an update every 5 weeks, and Eolas Medical every 6 days. Most recently, ClinicalKey was updated on October 16, 2026 and Eolas Medical on October 22, 2026.

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