Comparison

Anesthesia One vs LabRef

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

Head to head
About

Anesthesia One

This medical app provides a comprehensive toolbox for anesthesia care professionals. It offers customizable tools, an AI-powered assistant for case-specific guidance, and a natural language search for anesthesia guidelines. It works offline and allows users to save and share case logs.

Highlights
  • Customizable tool arrangement
  • AI-powered case assistant
  • Natural language guideline search
  • Offline functionality
  • Save and share case logs
  • Risk calculators and practice guidelines
Features
Read full description

Anesthesia One is a feature-rich toolbox and assistant for healthcare professionals providing patient-centered anesthesia care. “Mega apps” for anesthesia already exist, with the advantage of bringing multiple tools—calculators, drugs, crisis management, and more—under one umbrella. In everyday practice, though, navigating these large digital references can be a challenge. Unlike many other apps, Anesthesia One lets you custom-arrange tools (risk calculators, crises, drugs, practice guidelines, and more) for quick access in Favorites. When you are not sure which tools you need, enter patient and case details in the Assistant to see relevant risk calculators and guidelines. You can save the risk evaluation and case-relevant guidance as a log and share it with a colleague. Ask AnesthesiaOne is a new way to explore guidance: ask questions in plain language with search across curated anesthesia guidelines and education sources, optionally narrow by source, and open links to original documents when you want to read the full reference. Anesthesia One is designed to work online and offline, so critical management resources stay available when you need them most. We are a small team dedicated to putting helpful anesthesia tools at your fingertips. Our feature set can be updated over the air, and we plan to add more tools and guidelines as they become available. We are always working to improve and welcome your feedback. Thank you for your support. By installing this app, you agree to the Anesthesia One Terms of Use at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ and the Privacy Policy at https://www.anesthesiaone.com/privacypolicy.

About

LabRef

This medical reference app provides concise interpretations and reference ranges for common laboratory values across various disciplines. It's designed for quick access at the bedside, aiding in clinical decision-making. The app is for educational and informational purposes only.

Highlights
  • Interprets common laboratory values
  • Covers hematology, nephrology, critical care, and perioperative medicine
  • Provides concise interpretations
  • Includes reference ranges
  • Clean, intuitive interface
  • Optimized for bedside use
Features
Read full description

LabRef is a clinically focused reference for interpreting common laboratory values. Covering disciplines from hematology and nephrology to critical care and perioperative medicine, it delivers concise interpretations and reference ranges through a clean, intuitive interface optimized for rapid use at the bedside. This app is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you may have regarding a medical condition, and never disregard or delay seeking professional advice because of information provided by this app. About Rishi Kumar, MD, FACC ("RK.MD") I'm an adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist practicing in academic medicine. I'm passionate about teaching with free, open-access medical education. Learn more on my site: https://rk.md

Screenshots

Anesthesia One4 screens
LabRef4 screens

Verdict

The call

The clearest difference is in-app purchases: LabRef at none against Anesthesia One's 2. LabRef also leads on update cadence (every 5 weeks vs every 4 months) and rating (5.0 vs 4.8). Anesthesia One's advantage is iOS requirement (15.1 vs 26). On price, review sentiment, ads 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. Anesthesia One sells 2 in-app purchases, starting at $0.99 per month. LabRef asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LabRef holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 25 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Anesthesia One ships an update every 4 months, LabRef every 5 weeks. The most recent releases landed on October 3, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
Anesthesia One versus LabRef: the parameters behind the verdict, then further details
ParameterAnesthesia OneLabRef
PriceFreeFree
Rating4.8 (6 ratings)5.0 (25 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings625 — better
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26
Further details — not scored
Size96 MB16 MB
Age rating17+17+
DeveloperanaesthesiaoneRishi Kumar

Customer experience

Anesthesia One

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

LabRef

All ratings25 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Anesthesia One

Subscriptions2
  • Monthly Pro$0.991 Month
  • Yearly Pro$9.991 Year
None

LabRef

No in-app purchases

Questions

Is Anesthesia One free?
Anesthesia One is free to download, with in-app purchases available.
Is LabRef free?
LabRef is free to download, with no in-app purchases.
Which has better reviews, Anesthesia One or LabRef?
LabRef is rated higher. Anesthesia One averages 4.8 out of 5 from 6 ratings, while LabRef averages 5.0 from 25 ratings.
Do Anesthesia One or LabRef have ads?
Neither Anesthesia One nor LabRef shows ads.
Which is updated more often, Anesthesia One or LabRef?
Anesthesia One ships an update every 4 months, and LabRef every 5 weeks. Most recently, Anesthesia One was updated on October 3, 2026 and LabRef on September 23, 2026.

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