If someone does not check in, a trusted person is informed automatically.
Corlo is built for situations where a missing response should not go unnoticed. In that case, the app sends a clear message to the saved contact automatically.
How Corlo decides when an alert is actually warranted
A missed check-in almost always has a harmless reason — overslept, dead battery, outside in the garden. That is why Corlo does not escalate on the very first missing tap. Only when no response arrives within your defined time window does your emergency contact get informed.
A time window instead of instant alarm
Corlo only reacts after your defined time window passes without a check-in.
Understandable message
Your contact immediately learns why the notification was sent.
Guidance for the next step
The message includes cues about what the contact should reasonably do next.
An automatic notification should feel clear and calm, not dramatic.
Corlo uses a defined time window and sends an understandable message to a trusted person when that window passes without a check-in.
In family mode: follow-up email after 2 hours, a second after 6 hours — in case the first was missed
ACK-first: your green status only appears once the server has confirmed the check-in, not just when you tapped
Per alert window, at most one message per recipient — no duplicate emails even if a technical retry occurs
Automation with judgement, not panic.
Intentionally not a replacement for emergency services
The alert email makes clear that Corlo does not replace professional emergency help — and includes guidance on what practical next steps make sense for the contact.
If the delivery chain fails, we notice first
Technical failures in the alert pipeline trigger an automatic warning to the operator — no silent failure.
Why the notification is useful
A good automatic notification needs to be serious enough without creating unnecessary panic. That balance is exactly what Corlo aims for.
What matters is not only that a message is sent, but that the contact immediately understands it.
How Corlo prevents false alarms — step by step
- 1Check-in dueYour personal time window (for example 24 or 48 hours) passes without a check-in from you.
- 2Push reminderThe app actively reminds you about the check-in.
- 315-minute safety delayRight before sending, the server checks again whether a check-in came in after all. If yes, no alert is triggered.
- 4First alert to the emergency contactOnly now does the full email go out — server-confirmed, so you and your contacts know the message actually left the system.
- 5First follow-up after 2 hoursIn family mode, a second email reminds the contact in case the first one was missed.
- 6Second follow-up after 6 hoursIf no check-in still arrives, a final reminder follows.
In the background, Corlo follows an ACK-first principle: your green status only appears once the server has actually confirmed the check-in, not just when you tapped the button. So you can see immediately if the app is offline and your check-in never reached the system. Per alert window, the server sends at most one message per recipient — even if a technical retry is needed, your contact will not get a duplicate email. If anything in this delivery chain fails, an automatic technical warning is sent to the operator — so a problem reaches us before it reaches you. A classic medical alert pendant dispatches a professional service right away. Corlo takes the opposite path — a controlled, verified escalation to private contacts.
More topics that fit this situation.
If you want to narrow your situation down further, these related pages cover nearby questions in more detail.
Frequently asked questions
Decide that a missing response should not go unnoticed.
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