A rapid, offline reference tool for respiratory therapists and critical care clinicians. It offers numerous calculators, a guide to ventilator modes, and an AI-powered blood gas interpreter to aid in patient assessment and management.






247+ iOS apps curated and reviewed
The best respiratory apps on iPhone average 4.1★ across 247+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | Yes | Aug 2026 | ||
| 2 | Free | 5.0★ (8) | No | Yes | Oct 2026 | ||
| 3 | Free | 4.6★ (55) | Yes | Yes | Jul 2026 | ||
| 4 | Free | 4.7★ (118) | No | Yes | Oct 2026 | ||
| 5 | Free | — | No | No | May 2026 | ||
| 6 | Free | 1.9★ (7) | No | No | Oct 2026 | ||
| 7 | Free | 4.5★ (579) | No | Yes | Oct 2026 | ||
| 8 | Free | 5.0★ (47) | No | No | Oct 2026 |










A rapid, offline reference tool for respiratory therapists and critical care clinicians. It offers numerous calculators, a guide to ventilator modes, and an AI-powered blood gas interpreter to aid in patient assessment and management.






This portable guide offers rapid access to vital respiratory procedures, facts, and formulas, emphasizing critical care. It serves as a clinical resource, study tool, or quick refresher with a full-color design and fast-access charts for essential information.