Built by a Respiratory Therapist

The Story Behind Pulmoro

Pulmoro was created by Hamza Crichlow, a Registered Respiratory Therapist with hands-on experience in intensive care, emergency medicine, and ECMO support. Like countless clinicians on the front lines of the COVID-19 pandemic, Hamza faced the challenge of making complex decisions in rapidly changing environments. Throughout the pandemic, he cared for patients at Good Samaritan Hospital in Puyallup, Washington—the first hospital in the United States to treat a confirmed COVID-19 patient—as well as hospitals in Brooklyn, Detroit, and Texas during some of the pandemic's most demanding periods. Those experiences changed the way Hamza viewed respiratory care and the responsibility clinicians carry every day, shaping not only his clinical practice, but also the perspective he would later bring to creating Pulmoro.

In 2024, Hamza enrolled in the Apple Developer Academy in Detroit to learn iOS development. While there, he discovered a passion for UX design and began exploring how thoughtful design could improve the tools clinicians rely on every day. During his time at the Academy, he participated in Apple's Swift Student Challenge, where learners are encouraged to build an app inspired by a personal story or meaningful experience. Hamza chose to create a resource he wished he had at the bedside, not just another medical calculator, but a tool that explained the clinical reasoning behind every result while helping educate the next generation of respiratory therapists. That idea became Pulmoro, earning him recognition as a 2025 Apple Swift Student Challenge Winner.

Pulmoro brings evidence-based calculators, clinical interpretation, educational content, and bedside case studies together in a single application designed specifically for critical care clinicians.

Drawing on both his clinical experience and background in UX design and iOS development, Hamza designed every part of Pulmoro with the realities of bedside care in mind. In high-stress clinical environments, every second matters. From readable typography and high-contrast visuals to offline functionality and accessibility features, every detail was intentionally designed to help clinicians find the information they need quickly, understand it clearly, and make confident decisions.