IntVent vs PFT Spirometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IntVent
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Make critical airway decisions with confidence — in seconds. IntVent is a clinical decision support tool designed to assist healthcare professionals in emergency and critical care scenarios, including oxygen therapy, non-invasive ventilation, and intubation. Built for real-world pressure, IntVent transforms patient data into clear, actionable recommendations — helping you move faster while maintaining clinical safety. Key Features * Step-by-step ventilatory assessment * Evidence-based recommendations * Oxygen Therapy * Non-invasive ventilation (SVNI) * Invasive ventilation (SVI) * RSI medication dosing * Adjusted to clinical profile * Initial ventilator settings * VCV / PCV modes * Automatic calculations * Ideal Body Weight (IBW) * S/F ratio * P/F ratio * ARDS classification Designed for * Emergency physicians * Intensivists * Anesthesiologists * Pulmonologists * Critical care nurses Why IntVent * Works offline by default * No login required * Fast, intuitive workflow * Built for use in high-pressure environments Access IntVent includes 3 free assessments. A subscription unlocks unlimited access to all features and recommendations. Disclaimer IntVent is intended for use by trained healthcare professionals. It does not replace clinical judgment or institutional protocols.
PFT Spirometry
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PFT & SPIROMETRY TOOL — EDUCATIONAL PATTERN REFERENCE FOR TRAINED CLINICIANS Built for pulmonary medicine residents, fellows, pulmonologists, and advanced medical learners who want a structured, guideline-aligned way to practice PFT pattern recognition—not a substitute for independent clinical judgment. Apply ERS/ATS interpretive strategies in one app: • ERS 2022+ interpretation (Z-score–forward, current ATS/ERS standard) • ERS pre-2022 interpretation (2005-era strategy for comparison and teaching) WHAT YOU CAN DO ▸ Discern physiologic patterns Enter spirometry, lung volumes, diffusion, and bronchodilator data. The app suggests obstructive, restrictive, mixed, and atypical patterns with severity grading—using transparent, guideline-based logic. ▸ Professional PDF outputs Generate clean, shareable PDF reports with findings, pattern summary, educational disclaimers, and a physician sign-off field—ideal for teaching conferences, case logs, and personal study records. Email directly from your device when Mail is configured. ▸ Dual-guideline learning Compare how the same data may be framed under current vs. prior ERS/ATS strategies—valuable for boards review, fellowship teaching, and understanding evolving standards. ▸ Educational differential reference (Premium) The Notes tab maps classic PFT patterns to commonly associated differential diagnoses (obstruction, restriction, mixed disorders, ILD, and more)—for manual study only. Pattern outputs do not auto-generate disease names; differentials are separated for educational clarity. ▸ Report library (Premium) Save, search, and re-export prior interpretations. De-identified labels only—do not enter patient identifiers. FREE VS PREMIUM Free: Disclaimers, regulatory information, subscription management, some content under Notes, and scroll preview of tools. Premium (7-day free trial, then auto-renewing subscription): • Full interpretation on both guideline tools • PDF generation and email send • Saved report history • Educational Notes & pattern-to-differential reference WHO THIS IS FOR Pulmonary & critical care fellows and residents Respirologists / pulmonologists refreshing pattern skills IM physicians with PFT interest Medical educators teaching spirometry interpretation NOT FOR patient self-diagnosis or unsupervised clinical decision-making. IMPORTANT — EDUCATIONAL USE ONLY This app is an educational pattern reference for qualified healthcare professionals. It is NOT a medical device, NOT FDA/Health Canada cleared, and NOT clinically validated. All outputs are preliminary educational suggestions requiring verification against the full PFT report, clinical context, imaging, and applicable guidelines. Not a diagnosis. Not for sole clinical decision-making. SUBSCRIPTION INFORMATION PFT Premium is an auto-renewable subscription (monthly or yearly). Payment is charged to your Apple ID account. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Any free trial converts to a paid subscription unless canceled before the trial ends. Refunds are handled by Apple. Privacy Policy, Terms, and EULA are available in-app and at the URLs provided on the App Store listing: https://github.com/knispow/pft-privacypolicy/blob/main/README.md Guidelines referenced include ERS/ATS 2022 (Stanojevic et al.) and ERS/ATS 2005 interpretive strategies. Always consult primary literature and local standards of care.
Screenshots
Verdict
The clearest difference is iOS requirement: PFT Spirometry at 18 against IntVent's 26.0. On price, 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
Both are free to download. IntVent sells 2 in-app purchases, starting at $8.99 per month and PFT Spirometry sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | IntVent | PFT Spirometry |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 18 — better |
| Further details — not scored | ||
| Size | 37 MB | 8 MB |
| Age rating | 17+ | 17+ |
| Developer | Gabriel Ribeiro | ABHISHEK KUMAR |
In-app purchases
IntVent
- Premium Monthly$8.991 Month
- Premium Yearly$49.991 Year
PFT Spirometry
- PFT Premium Monthly7 Days trial$7.991 Month
- PFT Premium Yearly7 Days trial$79.991 Year









