Five iPhone apps that earn a place on a med student's lock screen.

You will recognise this app under its old name. Wolters Kluwer finished folding Lexicomp into the UpToDate brand last year, and the App Store icon now reads UpToDate Lexidrug. The underlying database is the same monograph set that hospital pharmacies have treated as the reference of record for two decades — adult and pediatric dosing, IV compatibility, adverse reactions, drug-drug and drug-disease interactions, and several hundred medical calculators.

Two things make it worth the institutional licence most schools provide. First, the offline-mode toggle introduced in a recent update means a downloaded monograph set keeps working in a basement on-call room with no signal — a real problem for the previous version, which would silently fall back to a stale cache and not tell you. Second, the drug interaction checker accepts a pasted medication list and returns severity-graded results in seconds, which is the workflow that matters when you are pre-rounding on a polypharmacy patient at 5:30 a.m.

It is not the app you open to learn pharmacology. It is the one you open to confirm a dose before you write it.

Epocrates is the app that taught a generation of clinicians to look things up on a phone, and athenahealth has kept it relevant by adding a conversational AI assistant on top of the same monograph database that has always backed it. You can now ask "is azithromycin safe in QT prolongation" in plain English and get a sourced answer that links back to the underlying monograph — useful at the bedside, where typing into a search field with gloves on is its own small humiliation.

The pill identifier is still the cleanest in the category. Imprint, colour, and shape narrow a tablet to one or two candidates in under a minute, which matters in an ED triage where a patient empties a Ziploc bag onto the desk and cannot remember what any of it is for. The free tier still covers drug monographs, the interaction checker, the calculator library, and the pill ID — with the caveat that athenahealth has begun rate-limiting how many monograph views a free user gets per week. Heavy users are pushed toward epocrates+, which most students will not need.

Pair it with UpToDate Lexidrug, do not replace one with the other.

Medscape is the WebMD-owned app that bundles a credible drug reference, a 450-plus calculator library, and a free CME engine into one place — and unlike the previous two on this list, the whole thing is genuinely free. The most recent app updates added "Your Clinical Pulse," a personalised home feed tuned to your stated specialty, and pulled the WebMD pill identifier into the Medscape app directly so you no longer need a second install.

For students, the value is the news plus the CME credit. Medscape publishes a daily medical news digest that is the closest thing most physicians read to a trade paper, and the same app lets you bank ABIM MOC points and CME credit against the activities you already complete. As a fourth-year preparing for residency, you will want a credit history that is portable across specialties, and Medscape is the path of least resistance to that.

The reference content is honestly a step behind UpToDate Lexidrug and Epocrates on depth, but it is faster to load and reads better on a small screen.

Prognosis: Your Diagnosis from Medical Joyworks is the app that turns the bus ride home from the hospital into a clinical case. Each case is a self-contained vignette — chief complaint, history, focused exam, lab results — that asks you to choose diagnostics, narrow a differential, and pick a management plan, then walks through the reasoning regardless of whether you got it right.

The library is the real asset. Cases come from more than two hundred contributing physicians across thirty-three specialties, and Medical Joyworks releases new ones weekly, so a third-year student can spend an entire clerkship on Prognosis and never see the same case twice. Version 6.0 reorganised the case library by specialty rather than chronological release, which makes it genuinely usable as a study companion for a Step 2 CK rotation block.

It is not a replacement for UWorld and it is not pretending to be — the explanations are tighter and the question banks are shorter. It is the app you reach for when you have fifteen minutes and a question bank would feel like too much commitment.

Figure 1 is a peer network for clinicians built entirely around anonymised case images. A surgeon posts a wound that is not healing, a derm resident posts a rash, a medic posts an ECG strip, and verified members of the network — the platform verifies clinical credentials before granting posting access — discuss the differential in the comments. For a student, the value is asymmetric: you cannot post much yet, but you can read and learn from years of accumulated case discussions across specialties you have not rotated through.

The 10.2 release earlier this year tightened the comment threading and improved how saved cases sync across devices, which were the two longest-standing complaints. The app is still free, still ad-free, and still moderated against patient-identifying detail with more rigour than any other clinical social app we have used.

Treat Figure 1 as a supplement, not a study tool. It is the quiet feed you scroll on a slow Sunday morning when you want to stay in the habit of thinking like a clinician without opening a textbook.

The honest recommendation for a medical student in 2026 is a core trio of UpToDate Lexidrug, Epocrates, and Prognosis — one drug reference your pharmacy will trust, one drug reference that is fast enough for the hallway, and one case-based learning app that respects how little uninterrupted time a clerkship leaves you. Install all three on day one of third year and you will not need much else for clinical work.

Medscape and Figure 1 are situational adds. Medscape earns its place on the home screen the moment you start banking CME credit toward a licence renewal — typically late in fourth year — and Figure 1 is worth installing if you are the kind of learner who genuinely enjoys case discussion as ambient reading. Neither is essential the way the core three are.

What we would skip: the dozens of free flashcard apps that crowd the medical category and pretend to be teaching tools when they are really just SEO funnels for paid question banks. Stick to the five above and keep the lock screen quiet.