Every app on this site follows the same rules.
Decision support only
The apps help a qualified clinician think. They do not diagnose, and the clinician's own reading always prevails.
Clinician-reviewed logic
Clinical rules are written in plain, reviewable tables and are checked by a doctor before release, not left to a model's opinion.
Safety first in the design
A missed emergency costs more than a false alarm. No app gives a reassuring "normal" by default, and every result shows its limits.
No patient data kept
No accounts, no history, no analytics. What you enter is processed and then discarded.
Tested before release
Each app is measured against reference data, and then tested with a small group of doctors, before it is offered more widely.
Honest about limits
Every app page states what the tool cannot do, and how it was validated.