Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 1.4, updated 2026-10-11.
Store screenshots supplied by the developer.
Cardiac Alarm is a specialized heart rate monitor built for people living with heart conditions, health-related phobias, adult children watching over aging parents, and anyone who wants one more layer of awareness for their heart.
Set a low and high heart rate threshold on your Apple Watch — Cardiac Alarm sounds a high-volume siren the instant your pulse crosses it. At the same moment, up to three people you choose — your Guards — are notified that you may need help, with a loud siren on their iPhones, wherever they are.
No dashboards. No useless statistics. Just a specialized heart rate monitor with a siren that goes off when something is wrong.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Our biggest update yet. • Your own thresholds — set the low and high heart rate limits that trigger the siren, right on your Apple Watch. • Guards — invite up to three people. Their iPhones sound a loud alarm the moment yours does. Free for them. • Critical Alerts — the alarm sounds through Silent Mode, Do Not Disturb, and Focus. • Monthly test — a test alert proves the connection to each Guard still works.
Appworthy
cardiac-alarmWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.