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About
This app provides an additional layer of heart rate monitoring for Apple Watch users. It alerts family members to critical low pulse readings or signal loss during rest and sleep, with a loud siren for immediate notification.
✓Critical heart rate drop alerts
✓Loss of signal detection
✓High-volume siren notification
✓Family member alerts
✓Rest and sleep monitoring
✓Standalone Apple Watch app
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What's New in Cardiac Alarm
1.2
April 22, 2026
Safety Notice notification added Permissions-required notice added Info button added Design improvements
MoreSubscription plans
Cardiac Alarm Premium
24/7 heart monitoring & emergency cardiac protection
$0.991 Month
1 Month trialUser reviews
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FAQ
What is the main function of Cardiac Alarm?
Cardiac Alarm is designed to provide an extra layer of awareness for your heart rate during rest and sleep. It alerts family members to critical low pulse readings or signal loss by triggering a loud siren.
Does Cardiac Alarm require an Apple Watch?
Yes, Cardiac Alarm is a standalone Apple Watch app that utilizes the watch's sensors for heart rate monitoring. It also supports iPhone and iPod for related functionalities.
What is the fixed heart rate threshold for alerts?
The app triggers an alert if it detects a heart rate below a fixed threshold of 33 BPM or a loss of signal. This threshold cannot be modified by the user.
Is Cardiac Alarm a medical device?
No, Cardiac Alarm is intended for informational and monitoring purposes only. It is not a medical device and should not be relied upon as a substitute for professional medical advice, diagnosis, or treatment.
What are the limitations of Cardiac Alarm?
Cardiac Alarm is a best-effort tool. It cannot guarantee detection of every pulse drop due to technical limitations, software errors, or hardware malfunctions. Monitoring frequency depends on Apple Watch sensor availability and requires active sessions with firm skin contact.
How often is Cardiac Alarm updated?
The app was last updated on April 22, 2026, to version 1.2. Update frequency is typically determined by the developer based on user feedback and necessary improvements.
What is the pricing for Cardiac Alarm?
Cardiac Alarm is available for a one-time purchase of $0.99. There is also a 'Cardiac Alarm Premium' subscription option at $0.99 per month, which includes a 1-month free trial.
Does Cardiac Alarm have ads?
No, Cardiac Alarm does not contain advertisements. The app is free to download and offers in-app purchases for premium features or subscriptions.