Comparison

CASP vs LogEM

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

Head to head
About

CASP

Critically appraise medical literature using evidence-based templates. Includes a glossary, calculators for NNT and post-test probability, and the ability to save and share appraisals.

Highlights
  • Critical appraisal templates
  • Glossary of terms
  • NNT calculator
  • Post-Test Probability calculator
  • Save and share appraisals
  • PDF export
Features
Read full description

CASP offers a convenient way to critically apprais the medical literature, it is based in CASP (Critical Appraisal Skills Programme) templates. And incorporates a Glossary section, and NNT and Post-Test Probability calculators with interpretation of the results. It allows to save and share critical appraisals in CASP and PDF formats.

About

LogEM

Features
Read full description

Built by an emergency medicine trainee, for emergency medicine trainees. LogEM is the only logbook app built specifically for UK EM trainees, around the actual RCEM curriculum. Capture every procedure and POCUS scan in seconds, and track your progress against the goals your portfolio expects. WHY LOGEM - Built around the real RCEM curriculum. Pick your stage and the right procedure lists and targets follow. - Covers your whole training journey, every curriculum stage from ACCS through to higher specialty training. - Track your progress against the specific POCUS and procedure goals for ARCP, not just raw counts, so you can easily see what is signed off and what is still to come. - A better home for your evidence than juggling spreadsheets or paying for apps that were never built for this. Bring years of scattered records into one place. - Unlimited logbook entries and report exports, free. - Your data stays on your device. No clinical data on our servers, no patient-identifiable information, ever. WHAT YOU CAN DO - Two logbooks in one app: procedures and POCUS. - POCUS tracker with entrustment levels and DOPS dates. - Procedure Goals grid that shows what is signed off and what is still to come. - Import your existing logbooks from spreadsheets, Excel, Word and more, so everything lives in one place. - Export ARCP-ready PDFs and CSVs for your portfolio. - Activity view so you can see your logging at a glance. Sign in with Apple or Google. Optional Face ID lock. LogEM is an independent app and is not affiliated with or endorsed by the Royal College of Emergency Medicine. It stores no patient-identifiable information.

Screenshots

CASP2 screens
LogEM4 screens

Verdict

The call

The clearest difference is update cadence: LogEM at every 11 days against CASP's every 2 months. CASP's advantage is iOS requirement (7.0 vs 15.1). 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

CASP ships an update every 2 months, LogEM every 11 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
CASP versus LogEM: the parameters behind the verdict, then further details
ParameterCASPLogEM
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size2 MB86 MB
Age rating4+4+
DeveloperLuis Ruiz del FresnoTHOMAS PHILLIP PORTER

In-app purchases

None

CASP

No in-app purchases

None

LogEM

No in-app purchases

Questions

Is CASP free?
CASP is free to download, with no in-app purchases.
Is LogEM free?
LogEM is free to download, with no in-app purchases.
Do CASP or LogEM have ads?
Neither CASP nor LogEM shows ads.
Which is updated more often, CASP or LogEM?
CASP ships an update every 2 months, and LogEM every 11 days. Most recently, CASP was updated on November 1, 2026 and LogEM on October 31, 2026.

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