Living Alone Safely: Someone Knows If Something Happens
时间遗书团队 · Updated 2026-06-19
Tap a check-in button once a day. Miss a check-in and the emergency contacts you set are notified automatically. No smart band, no camera, no privacy intrusion — a phone is all it takes. The biggest risk of living alone is not the accident itself but that nobody knows it happened, and a heartbeat check is built to solve exactly that. Set roughly a 30-day interval with a 7-day grace period, tell your contacts what to expect, and walk through the flow once yourself so nobody is confused when it matters. The setup takes minutes and then runs quietly in the background.
In 2025, more than 125 million people in China lived alone — young adults in solo apartments, parents their far-away children can't check on, business travelers in hotels. For all of them, the single biggest risk is the same: if something happens, no one knows. This isn't fear-mongering: a sudden illness, a fall in the shower, a kitchen accident — any of these can leave someone living alone out of contact for days. Further reading: Heartbeat check + after-death messages — triggered by silence, not a timer. For more, see Heartbeat check and Digital will and How to write a will.
How a heartbeat check keeps you safe when living alone
TimeWill's approach is simple. You set a check-in frequency — once a day, say — and when it's time, the app reminds you to open it and tap. If you miss the check-in window, the system moves through a sequence: an alert to you first, then a message to your contacts, and finally the option to release passwords and letters. No camera, no smart band, no extra hardware. A phone is all it takes.
- For yourself — Tap in once a day. The day you don't, the contacts you set are notified automatically.
- For your parents — Set it up on their phone and have them check in daily. If you get an alert from another city, you know to call.
- For travel — In an unfamiliar city, shorten the check-in interval so your contacts know you're safe.
Why it beats a smart band
A smart band has to be charged, connected, and worn. Older people resist wearing one; younger people forget to charge it. A heartbeat check is one button — open the app and tap. If an older relative can use WeChat, they can use this. The point: no special permissions, no data collection, no sense of being watched.
Tiered alerts — not all-or-nothing
It isn't 'miss a check-in → alert everyone at once.' TimeWill supports four stages: T1 reminds you, T2 reminds you again and alerts your contacts, T3 releases passwords and account details, T4 delivers final letters. You set the interval for each stage independently, so a missed check-in never turns into an embarrassing false alarm.
How women living alone and older adults differ in what they need
Women living alone tend to worry more about personal safety — break-ins, harassment — while older adults worry more about health events: falls, sudden illness. TimeWill's heartbeat check works for both, but the recommended check-in interval differs: daily for older adults, every two to three days for younger people.
What if I can't check in while traveling?
You can switch on 'leave mode' in the app beforehand — it pauses the check-in for a stretch of time, the way a heartbeat check works, and you turn it back on when you return. The leave expires automatically and detection resumes, so a normal trip never triggers an alert.
Can property management or a neighbor be an emergency contact?
Yes. A contact in TimeWill can be anyone — family, a friend, a colleague, a neighbor. Set at least two, so a notification isn't missed if one person doesn't see it. Contacts don't need to install the app; they receive messages by SMS or email.
FAQ
Q: Heartbeat check or smart band — which is better?
A smart band needs charging, has to be worn, and older people find it a hassle. A heartbeat check is just opening an app and tapping a button — if you can use WeChat, you can use it. It needs no special permissions and collects no private data.
Q: Will a business trip cause a false alarm if I forget to check in?
No. The four-stage design handles this: T1 reminds you, T2 notifies your contacts, T3 releases passwords, T4 delivers final letters. Each stage has its own interval. Before traveling, just set a temporary check-in frequency.
Q: Can I set more than one contact?
Yes — set at least two, so a message isn't missed if one person doesn't see it. Contacts don't need to install the app; they receive messages by SMS or email.