EDITORIAL · MEDICAL · MAY 9, 2026 · 8 min
Five iPad apps that earn a place on a public-health professional's shift kit.
The original list ran three apps deep. The category has broadened enough since that the honest 2026 answer is five — three on every shift, two when the work crosses borders.
The original version of this list, written when an iPad still came with a thirty-pin connector, picked three apps. The medical and public-health reference categories have broadened enough since that the honest 2026 answer is five — three for every shift, two when the work crosses borders or touches acute neurology. Five apps, not fifteen, and a clear hierarchy among them.
A working professional needs a reference that loads in the time it takes to cross a corridor — and answers the question that arrives next, not the one that arrived last week. That bar is higher than it sounds. The medical category on the App Store is full of free apps that paywall the dose you actually need, ship a year-old monograph because their offline cache silently broke, or push outbreak alerts on a delay that would embarrass a small-town newspaper. The five below clear the bar in different shapes — two as institutional drug references, one as a daily news-and-CME desk, one as the WHO’s official offline paediatric reference for low-resource settings, and one as the NIH-stamped stroke scale.
Below: five apps, what each one does well, and which three of them genuinely belong on every public-health professional’s shift kit.
"A working professional needs a reference that loads in the time it takes to cross a corridor — and answers the question that arrives next, not the one that arrived last week."
01 · APPLE
UpToDate Lexidrug — the dose your pharmacy will sign off on.
For a working professional, the question is rarely "what does this drug do." The question is "is the dose I am about to write going to clear pharmacy review at 2 a.m." UpToDate Lexidrug is the monograph set that pharmacy already trusts — Wolters Kluwer finished folding Lexicomp into the UpToDate brand last year and the App Store icon now reads UpToDate Lexidrug — and that shared source of truth is the entire reason it earns its place on the iPad you carry between wards.
What matters on shift is the offline mode. A downloaded monograph set keeps working in a basement on-call room, a rural clinic with intermittent signal, or a field deployment where the connection is whatever a satellite phone can hold. Recent builds finally tell you when the cache is stale rather than silently serving a year-old dose, which was the longest-running complaint on the legacy Lexicomp app. The interaction checker accepts a pasted medication list and returns severity-graded results in seconds — the workflow that matters when an outreach patient hands you a polypharmacy list scribbled on a pharmacy receipt.
The institutional licence is expensive. If your employer carries it, install it before your shift starts. If they do not, escalate.
02 · APPLE
Epocrates — the corridor-speed lookup with an AI shortcut.
Epocrates is the app you reach for when the question has to be answered before the elevator doors open. athenahealth's conversational AI assistant now sits at the top of the search bar, so you can type "azithromycin in QT prolongation" in plain English and get a sourced answer that links back to the underlying monograph. For a public-health professional moving between consults, that is the difference between a thirty-second lookup and a two-minute one.
The pill identifier remains the cleanest in the category — and for community and outreach work, it is the feature that matters most. A patient empties a pillbox onto the table, the imprints are half-worn, the labels are in three languages, and Epocrates narrows it to one or two candidates by colour, shape, and code faster than anything else on the App Store. The free tier still covers the monographs, the interaction checker, the calculator library, and the pill ID, though athenahealth has begun rate-limiting how many monograph views a free user gets per week. If you are heavy enough on it to hit the cap, your employer should be paying for epocrates+.
Pair it with UpToDate Lexidrug. They are not redundant — one is the reference of record, the other is the reference of speed.
03 · APPLE
Medscape — the public-health desk you read between consults.
Of the three drug references on this list, Medscape is the one that doubles as a daily desk. The WebMD-owned app bundles a credible drug reference, a 450-plus calculator library, and a free CME engine into one place — and unlike the other two, the whole thing is genuinely free. For a public-health professional, the value sits in the news layer rather than the reference layer.
Medscape's daily medical news digest is the closest thing most working clinicians read to a trade paper, and in a year when CDC Health Alert Network notifications dropped from sixteen in 2024 to six in 2025, that signal matters more than it used to. "Your Clinical Pulse," the personalised home feed Medscape added in a recent update, can be tuned to public-health and infectious-disease topics so the morning glance lands on outbreak coverage rather than cardiology trial readouts. The same app banks ABIM MOC points and free CME against activities you were going to read anyway, which is the path of least resistance to a portable credit history.
The reference content is honestly a step behind UpToDate Lexidrug and Epocrates on depth. Read it for the news. Use it for the calculators. Bank the credits.
04 · APPLE
WHO e-Pocketbook of Hospital Care for Children — the offline standard for low-resource paediatrics.
The WHO e-Pocketbook is the official electronic edition of the Blue Pocketbook — the paperback that has sat in district hospital wards from Lilongwe to Dhaka for twenty years. It covers the major causes of childhood mortality with limited resources: neonatal illness, pneumonia, diarrhoea, severe acute malnutrition, paediatric HIV, and the surgical problems that arrive in places where a paediatric anaesthetist may be a day's drive away. The app is free, ad-free, and produced by WHO directly.
What matters on the iPad is the offline behaviour. Every guideline can be viewed without a connection — not as a stale cache that fails silently, but as a fully bundled reference that loads instantly from local storage. For a public-health professional doing field rotations, mission work, or rural outreach, that is the difference between a tool you can rely on and a tool you have to apologise for. The structure follows the printed Pocketbook: Triage and Emergency, History and Examination, Investigations, Supportive care and Monitoring, Discharge and Follow-up.
It is not a substitute for UpToDate when you are working in a tertiary centre. It is the reference you reach for when the tertiary centre is ten hours away and the protocol you need is the one that assumes it.
Read the full WHO e-Pocketbook of Hospital Care for Children review →
05 · APPLE
NIH Stroke Scale Calculator — the official NIHSS, finally on the device in your hand.
The NIH Stroke Scale is the assessment that decides whether a patient gets thrombolysis, transferred, or worked up conservatively, and for years the standard mobile workflow was a third-party calculator built on top of an unofficial transcription of the scale. NIH's own calculator finally fixed that — published by NINDS, distributed by the Department of Veterans Affairs, and stamped with the authority that matters when an audit asks where the score came from.
The app is narrow on purpose. It walks the eleven NIHSS items in order, with the official scoring instructions for each attached to the scoring screen rather than buried in a help menu. The 14 March 2026 update fixed two long-standing reporting bugs: the detailed instructions for "11. Extinction and Inattention" were displaying the description for "1a. Level of Consciousness," and Dysarthria was reporting a 3 where it should have shown UN. Small errors, but the kind of small error a downstream stroke registry ingest would have flagged.
For a public-health professional working in stroke-system development, telestroke, or community-paramedicine programmes that touch acute neurology, this is the reference standard. The third-party NIHSS calculators are fine. The official one is what you cite.
THE BOTTOM LINE
The honest recommendation for a working public-health professional in 2026 is a core trio of UpToDate Lexidrug, Epocrates, and Medscape — one drug reference your pharmacy will sign off on, one drug reference fast enough for a corridor lookup, and one daily news-and-CME desk that respects the time you actually have. Install all three on the iPad you carry on shift and you will cover roughly ninety per cent of the lookups a working week produces.
WHO e-Pocketbook and the NIH Stroke Scale Calculator are situational adds with sharp use cases. The Pocketbook earns its place the moment your work crosses into low-resource paediatrics — field rotations, ministry-of-health consultancies, NGO deployments, refugee health programmes. NIHSS earns its place if you touch acute neurology in any operational role: telestroke programme management, EMS protocol development, system-level stroke audit. Both are free. Install them now and they will be ready when the shift turns.
What we would skip: the third-party "all-in-one" public-health apps that crowd the Medical category and pretend to bundle outbreak alerts, drug references, and calculators into a single free download. Their data is older than they admit and their notifications go quiet exactly when you need them loudest. Stick to the five above and let the institutional sources do their job.