Comparison

Master Anesthesia vs Respiratory Notes

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

Head to head
About

Master Anesthesia

This app provides anesthesia professionals with quick answers to common questions. It highlights anesthetic implications of diseases, surgical cases, and drugs, and includes a searchable acronym list and a comprehensive calculator for dosages, blood loss, and fluid management.

Highlights
  • Disease anesthetic implications
  • Surgical case anesthetic implications
  • Drug anesthetic implications
  • Searchable acronym list
  • Local anesthetic dosage calculator
  • Blood volume and loss calculator
  • Fluid and equipment calculations
Features
Currently charting
Read full description

Master Anesthesia helps anesthesia professionals find answers quickly to common questions. The primary purpose is to provide clinicians with the highlighted anesthetic implications of specific diseases, surgical cases, and drugs. In addition, a searchable list of over 1,000 acronyms is provided. A calculator has also been created to assist with maximum local anesthetic dosage, estimated blood volume, maximum allowable blood loss, fluid calculations, equipment, vitals, and more. Subscription and Purchase Options: Clinical Access Pro: $69.99/year – Full access to all clinical tools and updates. Auto-renews yearly. Full Access CE: $449.99/year – Full access to Clinical Access Pro + everything CRNAs need for their 4-year cycle. More than 150 pre-approved Class A (Mac-Ed) credits, and over 100 courses to choose from. Payment & Renewal: Payment will be charged to your Apple ID account at the time of confirmation. Annual subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription anytime in your Apple ID account settings. For more details on managing subscriptions, visit: https://support.apple.com/en-us/118428 Website: https://masteranesthesia.com Terms of Use: https://masteranesthesia.com/terms-of-service Privacy Policy: https://masteranesthesia.com/privacy-policy-and-disclaimer

About

Respiratory Notes

This app provides a comprehensive, procedure-based reference for respiratory therapy information. It includes illustrations, forms, and algorithms to aid in study and practice, with content organized around protocols and new pulmonary disease tabs. An in-app purchase unlocks all content, and a subscription offers continuous updates.

Highlights
  • Procedure-based format
  • Supporting illustrations and tables
  • Fill-in-the-blank forms
  • Algorithms based on AARC Guidelines
  • SmartSearch technology
  • Offline content access
Features
Read full description

"Try before you buy"" - Download the FREE App, which includes sample content. An in-App purchase is required to unlock all content.   Procedure-based format, all the respiratory therapy information you need at your fingertips. Respiratory Notes: Respiratory Therapist's Pocket Guide a quick-reference tool that put all the respiratory therapy information you need at your fingertips. The procedure-based format includes supporting illustrations, fill-in-the-blank forms, and algorithms to help you study and guide you in practice. Key Features * Bullet-point reviews guide you through procedures. * Quick-scan illustrations and tables summarize data. * Algorithms are based on AARC Clinical Practice Guidelines. * Key forms allow you to gather data at the bedside, and then transcribe to conventional charts New to this Edition * NEW! Pulmonary Disease and Airway/Ventilation Tabs * NEW! Comprehensive index * UPDATED! Procedures now organized around protocols No internet connection is required to access the content after the initial download. Find information quickly using powerful SmartSearch technology. Search part of term for those hard to spell medical terms. Content licensed from printed ISBN 10: 0803629222 Content licensed from printed ISBN 13: 9780803629226 SUBSCRIPTION : Please choose an auto renewable subscription plan to receive content access & continuous updates. Your subscription automatically renews as per your plan, so you always have the latest content.   Yearly auto-renewing payments - $29.99   Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user & auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable.   If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-30000   Privacy Policy-https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions-https://www.skyscape.com/terms-of-service/licenseagreement.aspx   Editor(s):  Gary C. White MEd RRT RPFT Publisher: F. A. Davis Company

Screenshots

Master Anesthesia4 screens
Respiratory Notes4 screens

Verdict

The call

The clearest difference is rating: Master Anesthesia at 4.9 against Respiratory Notes's 4.0. Master Anesthesia also leads on ads (none vs shown) and update cadence (every 6 days vs every 6 months). Respiratory Notes's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (13.0 vs 15.1). On price, 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. Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year and Respiratory Notes sells 1 in-app purchase, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Master Anesthesia holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Master Anesthesia ships an update every 6 days, Respiratory Notes every 6 months. The most recent releases landed on September 22, 2026 and August 19, 2026 respectively.

Scorecard7 real differences · 4 level
Master Anesthesia versus Respiratory Notes: the parameters behind the verdict, then further details
ParameterMaster AnesthesiaRespiratory Notes
PriceFreeFree
Rating4.9 (2K ratings) — better4.0 (4 ratings)
Positive reviews79.1% of reviews
Number of ratings2K — better4
Update frequencyEvery 6 days — betterEvery 6 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#94 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size69 MB47 MB
Age rating12+17+
DeveloperMatthew WillisSkyscape Medpresso Inc

Customer experience

Master Anesthesia

All ratings1,985 ratings
Positive97.8%
Neutral0.7%
Negative1.5%
Written reviews91 reviews
Positive79.1%
Neutral4.4%
Negative16.5%

Respiratory Notes

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

Bugs and requests

Master Anesthesia

Reported bugs

2 issues
  • Incorrect terminology and credentials on the starting screen
  • Inconsistent behavior when accessing content after subscription changes

Requested features

3 requests
  • Offline access to content
  • Apple Watch integration for the calculator
  • More detailed and up-to-date information on procedures and conditions

Respiratory Notes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Master Anesthesia

Subscriptions2
  • Master Anesthesia Contributor7 Days trial$69.991 Year
  • Full Access CE7 Days trial$449.001 Year
One-time5
  • Module Unlock$24.99
  • Course Unlock$99.00
  • Master Anesthesia One Time$99.99
Show 2 more
  • One-Time$149.99
  • Course Unlock$449.00
1 purchases

Respiratory Notes

Subscriptions1
  • Respiratory Notes$39.991 Year

Questions

Is Master Anesthesia free?
Master Anesthesia is free to download, with in-app purchases available.
Is Respiratory Notes free?
Respiratory Notes is free to download, with in-app purchases available.
Which has better reviews, Master Anesthesia or Respiratory Notes?
Master Anesthesia is rated higher. Master Anesthesia averages 4.9 out of 5 from 2K ratings, while Respiratory Notes averages 4.0 from 4 ratings.
Do Master Anesthesia or Respiratory Notes have ads?
Respiratory Notes shows ads; Master Anesthesia does not.
Which is updated more often, Master Anesthesia or Respiratory Notes?
Master Anesthesia ships an update every 6 days, and Respiratory Notes every 6 months. Most recently, Master Anesthesia was updated on September 22, 2026 and Respiratory Notes on August 19, 2026.

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