Respiratory Diseases vs VentRef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Respiratory Diseases
Explore animated explanations of respiratory diseases, covering anatomy, function, causes, symptoms, diagnosis, and treatment. Understand the immunopathology and therapies for various conditions affecting the respiratory system.
- Animated explanations
- Respiratory system anatomy
- Disease immunopathology
- Causes and symptoms
- Diagnosis and complications
- Treatment therapies and procedures
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With this application, you can download animation titles on respiratory diseases that explain the anatomy and functioning of respiratory system, immunopathology of the disease, its causes, signs, symptoms, diagnosis, complications, and treatment - therapies, procedures or techniques.
VentRef
A clinical reference tool for healthcare professionals managing mechanical ventilation and oxygen therapy. It provides information grounded in respiratory physiology and evidence-based critical care.
- Mechanical ventilation reference
- Oxygen therapy reference
- Respiratory physiology
- Evidence-based critical care
- Clinical decision support
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VentRef is a focused clinical reference for clinicians managing invasive and noninvasive mechanical ventilation and oxygen therapy, grounded in core respiratory physiology and evidence-based critical care practice. This application is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Calculations and reference values are derived from published peer-reviewed medical literature and textbooks cited in the Sources section of the app. Always seek the guidance of a qualified healthcare professional with any questions regarding medical conditions or clinical decisions, and do not disregard or delay seeking professional advice because of information provided by this app. About Rishi Kumar, MD, FACC ("RK.MD") I'm an adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist practicing in academic medicine. I'm passionate about teaching with free, open-access medical education. Learn more on my site: https://rk.md
Screenshots
Verdict
The clearest difference is review sentiment: VentRef at 100% against Respiratory Diseases's 0%. VentRef also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 5). Respiratory Diseases's advantage is iOS requirement (9.3 vs 26.0). On price, 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
Both are free to download. Respiratory Diseases sells 5 one-off in-app purchases. VentRef asks for nothing beyond the download.
VentRef holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: VentRef has 44 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Respiratory Diseases's written reviews are positive against 100% of VentRef's.
Respiratory Diseases ships an update every 24 months, VentRef every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Respiratory Diseases | VentRef |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (44 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 44 — better |
| Update frequency | Every 24 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.3 — better | 26.0 |
| Further details — not scored | ||
| Size | 43 MB | 27 MB |
| Age rating | 12+ | 17+ |
| Developer | Focus Medica | Rishi Kumar |
Customer experience
Respiratory Diseases
VentRef
In-app purchases
Respiratory Diseases
- Allergic rhinitis$7.99
- Chronic Asthma$7.99
- Chronic Obstructive Pulmonary Disease (COPD)$7.99
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- Upper Respiratory Tract Infections (URTI)$7.99
- Respiratory Diseases - Buy all$19.99
VentRef
No in-app purchases
Questions
Is Respiratory Diseases free?
Is VentRef free?
Which has better reviews, Respiratory Diseases or VentRef?
Do Respiratory Diseases or VentRef have ads?
Which is updated more often, Respiratory Diseases or VentRef?
Other comparisons
