Comparison

ClinicalKey vs TEM Guide

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

TEM Guide

This app provides a step-by-step guide for optimizing blood product selection and administration in TEM-directed transfusions. It aims to simplify and standardize the transfusion process for improved patient outcomes.

Highlights
  • Optimized blood product selection
  • Step-wise administration guide
  • Standardized transfusion process
  • Improved patient outcomes
  • Accessible transfusion guidelines
Features
Read full description

TEM Guide was created to optimise blood product selection and time to product administration in TEM directed blood transfusions. It's our hope that by making transfusion guidelines widely accessible and easy to interpret, we can simplify and standardise the transfusion process, leading to improved patient outcomes.

Screenshots

ClinicalKey4 screens
TEM Guide4 screens

Verdict

The call

The clearest difference is monetization model: TEM Guide at free against ClinicalKey's subscription. TEM Guide also leads on iOS requirement (12.0 vs 15.0). ClinicalKey's advantage is update cadence (every 5 weeks vs every 7 months) and review sentiment (9% vs 0%). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ClinicalKey ships an update every 5 weeks, TEM Guide every 7 months. Both last shipped on September 14, 2026.

Scorecard4 real differences · 4 level
ClinicalKey versus TEM Guide: the parameters behind the verdict, then further details
ParameterClinicalKeyTEM Guide
PriceFreeFree
Positive reviews8.8% of reviews — better0.0% of reviews
Update frequencyEvery 5 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size55 MB17 MB
Age rating12+17+
DeveloperElsevier Inc.Josh Case

Customer experience

ClinicalKey

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

TEM Guide

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

TEM Guide

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ClinicalKey

No in-app purchases

None

TEM Guide

No in-app purchases

Questions

Is ClinicalKey free?
ClinicalKey is free to download, with no in-app purchases.
Is TEM Guide free?
TEM Guide is free to download, with no in-app purchases.
Do ClinicalKey or TEM Guide have ads?
Neither ClinicalKey nor TEM Guide shows ads.
Which is updated more often, ClinicalKey or TEM Guide?
ClinicalKey ships an update every 5 weeks, and TEM Guide every 7 months. Most recently, ClinicalKey was updated on September 14, 2026 and TEM Guide on September 14, 2026.

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