Comparison

Master Anesthesia vs NYSORA IV Access

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

NYSORA IV Access

Master intravenous catheterization with interactive guides and high-quality videos. This app offers step-by-step techniques, troubleshooting tips, and specialized approaches for various patient populations. Enhance your skills for peripheral and ultrasound-guided IV access.

Highlights
  • Step-by-step IV access guides
  • High-quality clinical videos
  • Decision-making algorithms
  • Troubleshooting common challenges
  • Special population IV access techniques
  • Ultrasound-guided IV access tutorials
Features
Read full description

Master IV Access Anytime, Anywhere with the NYSORA IV Access App Your Ultimate Interactive Companion for Intravenous Catheterization Key Features: Step-by-Step Guides: Unlock visual and textual guides to perfect your IV access technique. High-Quality Videos: Learn from real-life clinical scenarios and expert demonstrations. Decision-Making Algorithms: Navigate through the complexities of peripheral IV access and troubleshooting with ease. Explore the Interactive Learning Experience: Peripheral IV Catheterization Technique: Follow a step-by-step guide on preparation, the technique of catheter insertion, and the post-insertion process, enhanced with clinical videos and expert demonstrations. Troubleshooting: Gain practical tips for common challenges, cannulating complex veins, and overcoming failed IV attempts, supplemented with clinical videos and expert insights. IV Access In Special Populations: Explore specialized IV catheterization techniques for unique patient groups, complete with clinical videos on managing difficult venous access due to conditions like obesity and diabetes. US-Guided IV Access: Master ultrasound-guided IV catheterization through hands-on tips and expert video tutorials that enhance precision and tackle challenging clinical cases. Download Now and Transform Your IV Catheterization Skills Designed for Excellence: A dynamic, user-friendly app crafted to elevate your IV catheterization skills. For All Skill Levels: Whether you're a student or a seasoned professional, this app is an ideal tool for anyone aiming to master IV catheterization. Terms of Use: https://www.nysora.com/terms-conditions-mobile-app/

Screenshots

Master Anesthesia4 screens
NYSORA IV Access4 screens

Verdict

The call

The clearest difference is monetization model: NYSORA IV Access at free with in-app purchases against Master Anesthesia's subscription. NYSORA IV Access also leads on review sentiment (100% vs 78%). Master Anesthesia's advantage is ratings volume (2K vs 2) and update cadence (weekly vs every 5 weeks). On price, rating, ads and in-app purchases 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 NYSORA IV Access sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Master Anesthesia against 5.0 for NYSORA IV Access. That said, the two scores are not equally well evidenced: Master Anesthesia has 2K ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 78% of Master Anesthesia's written reviews are positive against 100% of NYSORA IV Access's.

UpkeepUpdate frequency

Master Anesthesia ships an update weekly, NYSORA IV Access every 5 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard5 real differences · 6 level
Master Anesthesia versus NYSORA IV Access: the parameters behind the verdict, then further details
ParameterMaster AnesthesiaNYSORA IV Access
PriceFreeFree
Rating4.9 (2K ratings)5.0 (2 ratings) — better
Positive reviews78.5% of reviews100.0% of reviews — better
Number of ratings2K — better2
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#164 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size66 MB60 MB
Age rating12+12+
DeveloperMatthew WillisNYSORA inc.

Customer experience

Master Anesthesia

All ratings2,000 ratings
Positive97.8%
Neutral0.7%
Negative1.6%
Written reviews93 reviews
Positive78.5%
Neutral5.4%
Negative16.1%

NYSORA IV Access

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

NYSORA IV Access

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
2 purchases

NYSORA IV Access

Subscriptions2
  • FULL ACCESS SUBSCRIPTION7 Days trial$4.991 Month
  • FULL ACCESS SUBSCRIPTION7 Days trial$39.991 Year

Questions

Is Master Anesthesia free?
Master Anesthesia is free to download, with in-app purchases available.
Is NYSORA IV Access free?
NYSORA IV Access is free to download, with in-app purchases available.
Which has better reviews, Master Anesthesia or NYSORA IV Access?
NYSORA IV Access is rated higher. Master Anesthesia averages 4.9 out of 5 from 2K ratings, while NYSORA IV Access averages 5.0 from 2 ratings.
Do Master Anesthesia or NYSORA IV Access have ads?
Neither Master Anesthesia nor NYSORA IV Access shows ads.
Which is updated more often, Master Anesthesia or NYSORA IV Access?
Master Anesthesia ships an update weekly, and NYSORA IV Access every 5 weeks. Most recently, Master Anesthesia was updated on November 7, 2026 and NYSORA IV Access on November 8, 2026.

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