Comparison

F&P ROX Vector 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

F&P ROX Vector

This app visualizes respiratory rate and oxygen delivery changes in vector form. It calculates the ROX index to predict the success of nasal high flow therapy for hypoxemic respiratory failure. The tool also serves as a simulation for clinical scenarios and allows data export.

Highlights
  • Visualize respiratory rate and oxygen changes
  • Calculate ROX index
  • Predict nasal high flow therapy success
  • Clinical scenario simulation
  • Export data in xlsx format
Features
Read full description

The ROX Vector App is designed to visualise changes of respiratory rate and fraction of delivered oxygen in the vector form. The application calculates ROX index by dividing peripheral oxygen saturation by fraction of oxygen and by respiratory rate. The index has been proposed to predict success of nasal high flow therapy in patients with hypoxemic respiratory failure. The ROX Vector App can also be used as a simulation tool for reviewing various clinical scenarios. The data are stored in the device only and can be exported in xlsx format via email.

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

F&P ROX Vector3 screens
Rapid Vent Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Rapid Vent Calculator at every 4 months against F&P ROX Vector's every 17 months. Rapid Vent Calculator also leads on ratings volume (47 vs 1). F&P ROX Vector's advantage is iOS requirement (11.0 vs 13.0). 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. 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 F&P ROX Vector 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

F&P ROX Vector ships an update every 17 months, Rapid Vent Calculator every 4 months. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
F&P ROX Vector versus Rapid Vent Calculator: the parameters behind the verdict, then further details
ParameterF&P ROX VectorRapid Vent Calculator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (47 ratings)
Positive reviews—100.0% of reviews
Number of ratings147 — better
Update frequencyEvery 17 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better13.0
Further details — not scored
Size28 MB48 MB
Age rating17+17+
DeveloperFisher & Paykel HealthcareJENCO LLC

Customer experience

F&P ROX Vector

All ratings1 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

F&P ROX Vector

No in-app purchases

None

Rapid Vent Calculator

No in-app purchases

Questions

Is F&P ROX Vector free?
F&P ROX Vector is free to download, 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, F&P ROX Vector or Rapid Vent Calculator?
F&P ROX Vector and Rapid Vent Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 47 ratings respectively.
Do F&P ROX Vector or Rapid Vent Calculator have ads?
Neither F&P ROX Vector nor Rapid Vent Calculator shows ads.
Which is updated more often, F&P ROX Vector or Rapid Vent Calculator?
F&P ROX Vector ships an update every 17 months, and Rapid Vent Calculator every 4 months. Most recently, F&P ROX Vector was updated on November 9, 2026 and Rapid Vent Calculator on November 3, 2026.

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