AskMed vs ClinicalKey AI

What is ClinicalKey AI?

ClinicalKey AI is a clinical decision support tool from Elsevier that answers clinical questions asked in natural language, with citations linked to the published evidence behind each answer. Elsevier's FAQ says ClinicalKey AI uses retrieval-augmented generation: a search of Elsevier's content database finds the most relevant documents, and large language models summarize them for clinical decision-making. Elsevier describes the content as copyright-cleared and lists society guidelines from groups such as ACC, AACE, ACEP, CHEST and ESMO; journals such as The Lancet, the New England Journal of Medicine and 13 JAMA Network journals in full text; reference texts such as Braunwald's and Goldman-Cecil Medicine; and clinical overviews and drug information. In a February 2026 press release, Elsevier said ClinicalKey AI answers draw on full-text articles from more than 1,000 medical journals and that its content is updated every 24 hours. ClinicalKey AI runs on the web, inside Epic through an integration Elsevier announced in March 2025, and in apps for iPhone and Android.

ClinicalKey AI review: strengths and limits

A fair ClinicalKey AI review starts with what Elsevier has built well: ClinicalKey AI answers from a large, copyright-cleared library of full text. Elsevier says ClinicalKey AI draws on more than 1,000 medical journals, refreshes its content every 24 hours and traces each answer to the exact paragraph it was cited from. Elsevier also describes a clinician-in-the-loop evaluation, with licensed clinicians reviewing responses for accuracy and bias each quarter and before major releases, a Deep Research mode for structured, citation-rich evidence syntheses, and CME and MOC credits earned on the platform. For hospitals, ClinicalKey AI offers single sign-on from the EHR through SMART on FHIR, an Epic integration and API access. The limits come from Elsevier's own pages and listings: a subscription is required, individual plans are sold in listed countries, the App Store listing doesn't include iPad, the app is English only, and Elsevier's pages don't mention exam question banks or user-set source filters.

The ClinicalKey AI app on iPhone and Android

The ClinicalKey AI app is Elsevier's mobile version of ClinicalKey AI, listed by Elsevier Inc. on the US App Store and on Google Play, and both listings say an existing institutional or individual ClinicalKey AI subscription is required to use it. The listings describe AI-generated answers to natural-language questions, links to the full-text sources behind every response, and CME credits that you earn, track and claim in the app, and Elsevier's product page adds native voice-to-text dictation in the mobile app. On the App Store, the ClinicalKey AI app is marked "Only for iPhone", with no iPad among its listed devices, and it carries an 18+ age rating. Both store listings say that, at this time, the app is only available in English. The AskMed app runs on iPhone, iPad and Android, with the same account on the web, and the AskMed app comes in English, French, Spanish, Portuguese, Italian, Japanese and Arabic, so you can switch devices and languages on one subscription.

How do AskMed and ClinicalKey AI answer a clinical question differently?

AskMed and ClinicalKey AI both write cited answers from a defined set of sources, but AskMed lets you set the evidence behind each answer and says plainly when none is found. ClinicalKey AI answers from Elsevier's copyright-cleared knowledge base; Elsevier says references are chosen mainly for relevance, with guidelines, meta-analyses, Cochrane reviews, expert panels and large randomized trials preferred, and that real-time citation validation checks each statement against its cited reference. AskMed searches a fixed list of medical sources: journals and databases such as PubMed, the Cochrane Library, NEJM, The Lancet, JAMA and The BMJ; guidelines and agencies such as NICE, the USPSTF, WHO, CDC, ECDC and ESC; FDA and DailyMed drug labels, plus official registries such as the EMA and the UK's medicines.org.uk; and references such as StatPearls and the MSD Manual. AskMed's source filters turn source types on or off, pick study types and set 3 to 12 sources per answer. Elsevier's pages don't state user-set source filters.

1. A cited answer. Every claim in an AskMed answer links to its source's exact web address. If AskMed finds no usable medical source, AskMed says so and asks you to rephrase, instead of answering from memory.
2. Drug facts outside the US. AskMed checks official registries such as the EMA and medicines.org.uk for local brand names. Elsevier's subscription page says some ClinicalKey AI content, such as drug information and guidelines, may not align with regulations and practices outside the United States.
3. Research Mode. AskMed reads up to 20 papers for one question, for a journal club, a gap in the guidelines or a patient who doesn't match the trial population.
4. Your own files. Attach a PDF or an image to a question, and AskMed cites your file for what the file itself says.
5. No drug doses. AskMed covers what a drug is used for, how it works, monitoring, side effects and how dosing is adjusted, but never states amounts or schedules; those come from the current label.

How AskMed answers lists every source and limit in full.

Who can use ClinicalKey AI, and who can use AskMed?

ClinicalKey AI's App Store listing says ClinicalKey AI is intended for licensed clinicians and medical practitioners, and for residents and medical students in training who use the product under the supervision of a licensed medical practitioner. The ClinicalKey AI listing on Google Play says the app is designed for physicians, residents, medical students and healthcare professionals, and Elsevier's product page is written for healthcare leaders, clinicians and residents, and medical students in the US and Canada. Researchers are not named. Elsevier sells individual ClinicalKey AI plans in a listed set of countries, and its subscription page says some content may not align with practice outside the United States. AskMed asks for no license or NPI and works worldwide, so a medical student revising at home, a pharmacist reviewing an interaction, a nurse checking a monitoring plan and a researcher scoping a question use the same app as a consultant physician, with NICE, WHO, ECDC and ESC guidance searched alongside US sources.

Exam prep built in

AskMed includes question banks for 10 licensing exams, and Elsevier's ClinicalKey AI pages and app listings don't mention exam question banks. AskMed's banks cover PLAB, USMLE Step 1 and Step 2 CK, PLE, EDN, UKOMNAS, NEET-PG, ENARM, TUS, Ghana MDC and Israel MLE, and each bank is written in the language of its exam, such as French for EDN, Spanish for ENARM and Turkish for TUS. Every question comes with an explanation for every option, not only the right one, and cites one to three published sources. A timed mock of 40 questions in 60 minutes lets you practice under exam conditions. The questions are written in advance and reviewed before they are served, never generated by AI while you study. When a question exposes a gap, you can ask AskMed in the same app, get an answer cited to journals, guidelines and drug labels, and return to the bank. Students and international graduates keep exam practice and clinical answers in one account.

The best AI apps for USMLE and the best AI apps for PLAB 1 compare AskMed with dedicated question banks.

Is AskMed a good ClinicalKey AI alternative?

AskMed is a strong ClinicalKey AI alternative for anyone who wants cited clinical answers without a hospital subscription, a supervision requirement or a country list. Choose AskMed if you study medicine, work as a nurse or pharmacist, or do research; if you live outside the countries where Elsevier sells individual plans; or if you want a lower individual price, at $24.99 a month or $129.99 a year against US $39 a month or US $349 a year. Choose AskMed if you're preparing for one of 10 licensing exams, want to set source types, study types and 3 to 12 sources on every question, need a local brand name checked in a registry such as the EMA or medicines.org.uk, or want the app on an iPad or in French, Spanish, Portuguese, Italian, Japanese or Arabic. ClinicalKey AI suits clinicians whose hospital already licenses it inside Epic and who want CME credits. AskMed doesn't diagnose patients or decide treatment; AskMed focuses on cited answers and exam practice.

Comparing ClinicalKey AI with OpenEvidence or UpToDate as well? See AskMed vs OpenEvidence, AskMed vs UpToDate Expert AI and the UpToDate alternatives guide.

Bottom line

For most people who work or study in medicine, AskMed is the stronger choice over ClinicalKey AI for cited clinical answers. ClinicalKey AI is a capable tool, with full-text journals and textbooks, citation validation, an Epic integration and CME credits, but Elsevier's pages and app listings limit it in ways AskMed isn't limited: the app needs a subscription, individual plans cost US $39 a month or US $349 a year and are sold in listed countries, the App Store listing names supervised use for students and residents, and the app is English only and not listed for iPad. AskMed Pro costs $24.99 a month or $129.99 a year and works worldwide with no license number, on iPhone, iPad, Android and the web, in seven languages. AskMed lets you set source filters on every question, checks drug registries outside the US such as the EMA, says so when no source supports an answer, never gives drug doses and includes question banks for 10 licensing exams.