Comparison

Hoffman Anesthesia vs GasClass

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

Head to head
About

Hoffman Anesthesia

This clinical reference app provides anesthesia professionals and students with precision tools and educational resources. It features advanced calculators for pediatric dosing and local anesthetics, an AI-powered question answering tool, and a community forum for clinical discussion.

Highlights
  • Pediatric Comprehensive Calculator
  • Local Anesthetic Calculator
  • Coagulation Cascade Simulator
  • AI-powered clinical question answering
  • Fellowship-level anesthesia education guides
  • Clinician community forum
Read full description

Hoffman Anesthesia is the clinical reference app designed by an anesthesia provider — built for the realities of the operating room, AND the classroom. Whether you're managing a complex pediatric case, calculating maximum safe doses of local anesthetics, or looking up your next sedoanalgesic approach, Hoffman Anesthesia puts precision tools and fellowship-level education at your fingertips. CLINICAL CALCULATORS • Pediatric Comprehensive Calculator — dual weight/age inputs driving real-time equipment sizing, airway selection, and weight-based drug dosing. • Local Anesthetic Calculator — supports bupivacaine, ropivacaine, and lidocaine, with patient-specific max dose thresholds. • Coagulation Cascade Simulator — interactive visual reference for perioperative coagulopathy management. C.I.T.E. THE ANESTHESIA AGENT Ask clinical questions and receive evidence-based responses grounded in peer-reviewed anesthesia literature. The C.I.T.E. (Comprehensive Interrogation Tool for Extraction) Anesthesia Agent is built for anesthesia professionals and draws on pharmacology, physiology, and clinical protocol knowledge — not generic AI answers. FELLOWSHIP-LEVEL EDUCATION Comprehensive reference guides spanning: • Cardiac & thoracic anesthesia • Neuroanesthesia & trauma • Obstetric, pediatric & regional techniques • Pharmacology deep-dives: NMBs, opioids, volatile agents, vasopressors, antiemetics, and more CLINICIAN COMMUNITY FORUM Connect with fellow CRNAs, anesthesiologists, and SRNAs in a moderated Q&A community built for clinical discussion — not social media noise. Log in to PULSE and join the conversation! SECURITY & DESIGN Face ID / Touch ID authentication Elegant dark-mode interface designed for low-light OR environments Hoffman Anesthesia is for CRNAs, anesthesiologists, SRNAs, and anesthesia fellows who demand more than a generic drug reference. Subscriptions are monthly or annual at $9.99/month or $99.99/year, respectively. Subscribers receive enhanced access to AI features, while non-subscribers receive limited access. Cancel anytime. By downloading this app, you agree to Apple's Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This app is designed for use by medical and nursing professionals and/or students. If you are not a medical or nursing professional, please consult a qualified healthcare provider before making any medical decisions.

About

GasClass

This app offers audio-first lectures and a question bank for anesthesiology board review. It covers a wide range of topics and includes optional on-screen slides for visual learners. Designed for residents, fellows, and practicing professionals.

Highlights
  • Audio-first lectures
  • Exam-focused content
  • Comprehensive topic coverage
  • Board-style question bank
  • Synced on-screen slides
  • Designed for trainees
Features
Read full description

GasClass turns anesthesiology board review into something you can do with your eyes closed — on the drive in, between cases, or at the gym. AUDIO-FIRST LECTURES Concise, exam-focused lectures written for the ear, so the material actually sticks. Topics span the anesthesiology curriculum: • Regional & interventional pain — epidural steroid injections, facet blocks and radiofrequency ablation, sympathetic blocks, neuromodulation • Obstetric anesthesia — labor analgesia, cesarean delivery, hemorrhage, hypertensive disorders, maternal physiology • Pediatric anesthesia — neonatal physiology and pharmacology, airway, fluids and temperature, emergence • Critical care — shock and vasopressors, sepsis, mechanical ventilation and ARDS, AKI and renal replacement, sedation and delirium • Blood & fluids — coagulation and anticoagulation, transfusion, fluids and electrolytes • Endocrine anesthesia QUESTION BANK Board-style questions with full explanations, mapped to the lectures so you can test what you just heard. OPTIONAL ON-SCREEN SLIDES When you can look, synced slides surface the marquee numbers and formulas. When you can't, the audio stands on its own. BUILT FOR TRAINEES Designed for residents and fellows preparing for the ITE, BASIC, and ADVANCED exams — and for CRNAs and attendings staying current. GasClass is an educational study tool. It is not medical advice and is not intended for use in patient care.

Screenshots

Hoffman Anesthesia4 screens
GasClass4 screens

Verdict

The call

The clearest difference is in-app purchases: GasClass at none against Hoffman Anesthesia's 10. GasClass also leads on update cadence (daily vs every 3 days). Hoffman Anesthesia's advantage is ratings volume (3 vs 1). On price, rating, 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. Hoffman Anesthesia sells 10 one-off in-app purchases. GasClass asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Hoffman Anesthesia against 5.0 for GasClass. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Hoffman Anesthesia ships an update every 3 days, GasClass daily. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

Scorecard4 real differences · 5 level
Hoffman Anesthesia versus GasClass: the parameters behind the verdict, then further details
ParameterHoffman AnesthesiaGasClass
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Number of ratings3 — better1
Update frequencyEvery 3 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.517.0 — better
Further details — not scored
Size292 MB8 MB
Age rating4+17+
DeveloperHoffman Anesthesia Solutions, LLCJames Germi

Customer experience

Hoffman Anesthesia

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

GasClass

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Hoffman Anesthesia

One-time10
  • Sciatic Nerve Block$0.99
  • Ilioinguinal & Iliohypogastric Blk$0.99
  • Intercostal Nerve Block$0.99
Show 7 more
  • Paravertebral Block$0.99
  • Rectus Sheath Block$0.99
  • Transverse Abdominus Plane Block$0.99
  • Adductor Canal Block$0.99
  • Cardiac Anesthesia$1.99
  • Surgical Services Premium Pack$5.99
  • Regional Anesthesia Bundle$24.99
None

GasClass

No in-app purchases

Questions

Is Hoffman Anesthesia free?
Hoffman Anesthesia is free to download, with in-app purchases available.
Is GasClass free?
GasClass is free to download, with no in-app purchases.
Which has better reviews, Hoffman Anesthesia or GasClass?
Hoffman Anesthesia and GasClass are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Hoffman Anesthesia or GasClass have ads?
Neither Hoffman Anesthesia nor GasClass shows ads.
Which is updated more often, Hoffman Anesthesia or GasClass?
Hoffman Anesthesia ships an update every 3 days, and GasClass daily. Most recently, Hoffman Anesthesia was updated on October 31, 2026 and GasClass on November 13, 2026.

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