Demumu
Personal safety app — one daily tap to confirm you're okay, alerts loved ones if you miss check-ins.
| What is it | Personal safety app — one daily tap to confirm you're okay, alerts loved ones if you miss check-ins. |
|---|---|
| Pricing | Paid |
| Free tier | No |
| Platform | Mobile App |
| Best for | daily safety check-in for people living alone, automatic notification to emergency contacts if user misses check-in |
| Domain registered | 2026 |
Data updated Aug. 1, 2026
What does Demumu do?
Demumu is a personal safety app for iOS that centers on one simple idea: a daily check-in to confirm you're okay. If you miss a check-in, the app sends an email alert to a designated emergency contact. No location tracking, no account registration, no ads. Just a one-time $0.99 purchase and a tap each day.
The app works like this: you set up an emergency contact (name and email) in less than 30 seconds. Then, once a day, you open the app and tap a button to say you're fine. If you forget to check in for consecutive days, Demumu automatically notifies your contact. The app uses end-to-end encryption, and your data stays on your device — not on the company's servers. There are no subscriptions or hidden fees. The app was created in response to the growing issue of 'kodokushi' — unnoticed deaths among people living alone, a phenomenon particularly prevalent in Japan. Demumu has been featured in BBC News as a solution to this concern.
Who is this for? People who live alone, especially those who worry about what would happen if they had an accident or fell ill and no one noticed. It's also useful for families who want to keep an eye on an elderly relative living independently. The app is simple, direct, and privacy-focused — no tracking, no fuss. At $0.99, it's a cheap insurance policy for peace of mind.
Key features
What makes it stand outWho is Demumu for?
Who benefits most from this toolPricing
One-Time Purchase
- Unlimited daily check-ins
- Automatic emergency alerts
- End-to-end encryption
- No account required
- No ads or data selling
- Future updates included
Trust & presence
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