Comparison

ABGs NOW! vs Rapid Vent Calculator

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

Head to head
About

ABGs NOW!

Master arterial blood gas interpretation with this interactive tool. It offers a calculator for quick answers, practice sessions with hints, and a challenge mode to test your skills. Detailed analysis is provided for any errors, making learning engaging.

Highlights
  • ABG Calculator
  • Practice Mode with Hints
  • Challenge Mode
  • Detailed Analysis
  • Knowledge Strengthening
Features
Read full description

ABGs NOW!™ is a fun, engaging way for both students and professionals to strengthen their knowledge of arterial blood gases. The app features a calculator, providing immediate answers, a practice mode that guides the learner with helpful hints, and a challenge mode where learners can put their ABG skills to the test. Both practice and challenge modes provide detailed analysis for any missed interpretations. ​ ABGs NOW!™ offers an entertaining way to learn a challenging topic.

About

Rapid Vent Calculator

This medical app assists healthcare professionals in calculating essential ventilator settings and medication dosages for critical care. It provides rapid, accurate results for paramedics, respiratory therapists, nurses, and doctors, streamlining patient management.

Highlights
  • Effortless ventilator settings calculation
  • Rapid results for quick decision-making
  • RSI medication dosage assistant
  • User-friendly interface for medical professionals
  • Accurate patient parameter input
Features
Read full description

Rapid Vent Calculator is a clinician-focused field guide and reference tool for adult ventilator setting calculations, RSI medication dosing, and quick respiratory care references. Designed for paramedics, EMS clinicians, respiratory therapists, nurses, physicians, transport teams, ER teams, ICU clinicians, and hospital-based critical care providers, Rapid Vent Calculator helps organize common ventilator and airway calculations into a fast, practical workflow. Enter patient sex, height, weight, selected mL/kg, and metabolic acidosis status to generate adult starting-point ventilator values including respiratory rate, tidal volume, and minute ventilation. Calculations use ideal body weight and lung-protective ventilation principles for adult ventilator management. Rapid Vent Calculator also includes RSI medication dosing estimates, normal ventilator values, ABG/VBG blood gas reference charts, RASS reference guidance, dark and light mode, recent session resume, and shareable result snapshots. Whether used by EMS in the field, paramedics during transport, nurses and respiratory therapists in the ER, physicians in the hospital, or ICU clinicians managing ventilators, Rapid Vent Calculator is built to keep key adult ventilation references organized and easy to access. Key features: • Adult ventilator setting calculator • Ideal body weight-based tidal volume estimates • Lung-protective mL/kg selector • Respiratory rate, tidal volume, and minute ventilation results • Metabolic acidosis ventilation mode • RSI medication dosing estimates • Normal ventilator values reference • ABG/VBG blood gas reference charts • RASS reference guide • Shareable results snapshot • Dark and light mode • Clinician-focused workflow for EMS, transport, ER, ICU, hospital, and respiratory care use Rapid Vent Calculator is intended as a clinical reference and calculation aid for licensed healthcare professionals caring for adult patients. It is not a protocol, diagnosis tool, treatment directive, or substitute for clinical judgment. All values are starting-point estimates and must be verified against the patient’s condition, local protocols, institutional policy, and clinician scope of practice.

Screenshots

ABGs NOW!4 screens
Rapid Vent Calculator4 screens

Verdict

The call

The clearest difference is price: Rapid Vent Calculator at Free against ABGs NOW!'s $0.99. Rapid Vent Calculator also leads on ratings volume (47 vs 2). ABGs NOW!'s advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (10.0 vs 13.0). On rating, 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

Rapid Vent Calculator is free to download; ABGs NOW! costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ABGs NOW! against 5.0 for Rapid Vent Calculator. That said, the two scores are not equally well evidenced: Rapid Vent Calculator has 47 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

ABGs NOW! ships an update every 2 months, Rapid Vent Calculator every 4 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
ABGs NOW! versus Rapid Vent Calculator: the parameters behind the verdict, then further details
ParameterABGs NOW!Rapid Vent Calculator
Price$0.99Free — better
Rating5.0 (2 ratings)5.0 (47 ratings)
Positive reviews—100.0% of reviews
Number of ratings247 — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size161 MB48 MB
Age rating12+17+
DeveloperBytewise Studios, LLCJENCO LLC

Customer experience

ABGs NOW!

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Rapid Vent Calculator

All ratings47 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ABGs NOW!

No in-app purchases

None

Rapid Vent Calculator

No in-app purchases

Questions

Is ABGs NOW! free?
ABGs NOW! costs $0.99, with no in-app purchases.
Is Rapid Vent Calculator free?
Rapid Vent Calculator is free to download, with no in-app purchases.
Which has better reviews, ABGs NOW! or Rapid Vent Calculator?
ABGs NOW! and Rapid Vent Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 47 ratings respectively.
Do ABGs NOW! or Rapid Vent Calculator have ads?
Neither ABGs NOW! nor Rapid Vent Calculator shows ads.
Which is updated more often, ABGs NOW! or Rapid Vent Calculator?
ABGs NOW! ships an update every 2 months, and Rapid Vent Calculator every 4 months. Most recently, ABGs NOW! was updated on November 3, 2026 and Rapid Vent Calculator on November 3, 2026.

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