Demumu went viral in January 2026 as “Are You Dead?” — a daily tap that emails one contact if you go quiet for days. SafePulse is built on the same idea for the emergencies that can't wait days: flexible timers, text and email alerts, your location, and SOS.
See the side-by-sideThe concept is great: check in regularly, and if you stop, the people who love you find out. Demumu keeps it to one daily tap and one email contact. SafePulse keeps the one-tap simplicity but builds a real personal-safety system around it — so a fall, a medical episode, or a dangerous situation reaches your people in hours, not days.
| Feature | SafePulse / PulseGuard | Demumuformerly “Are You Dead?” |
|---|---|---|
| One-tap “I'm OK” check-in | ✓ | ✓ |
| No account or login needed | ✓ | ✓ |
| Flexible check-in intervalEvery 30 minutes up to 48 hours — not a fixed once-a-day cadence. | ✓ | ~Daily |
| Contacts alerted the same day you miss a check-inNot after days of silence. | ✓ | ✗Emails the day after missed consecutive days |
| Graduated alerts before going to contactsReminder → full-screen urgent warning → emergency — so you're never alerted by surprise. | ✓ | ✗ |
| Text message alerts | ✓ | |
| Email alerts | ✓ | ✓ |
| Live GPS location in the alertContacts get your name and a map link to your last known location. | ✓ | ✗Doesn't use location |
| Manual SOS / panic triggerAlert instantly — not only by missing a check-in. | ✓ | ✗ |
| Auto-call your first contact | ✓ | ✗ |
| Loud on-device alarmA siren to attract nearby help. | ✓ | ✗ |
| Low-battery warning to contactsSo a dead phone isn't mistaken for a dead user. | ✓ | ✗ |
| Multiple emergency contactsUp to 10, organized into safety circles. | ✓ | ✗One contact |
| Contact consent / opt-inContacts confirm by reply before they're ever stored or texted. | ✓ | ✗ |
| Wellness notes & mood journal | ✓ | ✗ |
| Alerts still go out if your phone is off or deadA secure cloud watches your deadline as a backstop, so silence still reaches your contacts. | ✓ | ~Email after missed days |
| Available across platformsAndroid, iPhone, Amazon, Huawei — including phones without Google services. | ✓ | ~Varies by region |
| Price | $4.99 once on Android · $2.99/month on iPhone | About $1 paid download (reported) |
| Developer | Independent developer in Michigan, USA | Small team in China |
✓ = included • ~ = partial / varies • ✗ = not described in Demumu's public app listing. Demumu details come from its app listing and news coverage (Wikipedia, ABC News, Al Jazeera) as of September 2026. Apps change — check the current listing.
Demumu takes a minimal approach: its listing says it avoids location permissions entirely. That keeps things simple, but it also means the email your contact receives can say you've gone quiet — not where you are. SafePulse makes the opposite trade-off on purpose: when you miss a check-in, the alert includes your last known location, because in an emergency “where?” is the first question.
SafePulse still has no accounts, no ads, and no tracking. What leaves your device is only what an alert needs — your name, your contacts' numbers and emails, and your last known location — used to deliver that alert, never sold, and deleted when you delete your data.
Built by an independent US developer, with a privacy policy you can actually read.
Everything Demumu does — plus the parts that actually keep you safe.
Every alert includes your name and a map link to your last known location — so help knows where to go.
Trigger an alert instantly, and sound a siren to draw the attention of anyone nearby.
SafePulse warns you first — vibrating and opening the app — before it ever contacts anyone.
Up to 10 trusted contacts, organized into groups, each confirmed before they're ever notified.
If your phone is about to die, your circle is told — so silence isn't mistaken for an emergency.
No accounts, no ads, no tracking. Your information is used for one thing — delivering your alerts — and nothing is ever sold.
What people ask when they're looking for a check-in app like Demumu.
Demumu is a daily check-in app for people who live alone, made by a small team in China. You tap once a day to say you're okay, and if you miss check-ins for consecutive days, it emails one emergency contact. It went viral in China in January 2026 under the name “Are You Dead?” (死了么, Sileme) before rebranding as Demumu for its global launch.
Yes. “Are You Dead?” was the app's original English name. Its developer renamed it Demumu in January 2026, saying the new name would make it easier to expand globally, so news coverage of the viral “Are You Dead?” app is about the same product.
SafePulse is a check-in app built on the same idea as Demumu, but it alerts people sooner and tells them where you are. Instead of a once-a-day tap, you set a timer anywhere from 30 minutes to 48 hours. If you miss it, SafePulse warns you first, then texts and emails up to 10 trusted contacts with your last known location — even if your phone is dead or switched off.
Check the developer name before you download or pay for any Android app called Demumu. As of September 2026, a Google Play listing using that name is published by a different company than the one behind the viral app. SafePulse is available on Google Play, the Samsung Galaxy Store and Huawei AppGallery, as well as on iPhone and Amazon Fire tablets.
No. Demumu's app listing says it avoids location permissions, so its alert email can tell your contact you've gone quiet, but not where you are. SafePulse includes your last known location in every alert, because in an emergency the first thing your contacts need to know is where to go.
No. SafePulse is built by an independent developer in Michigan and has no connection to Demumu or its developer. SafePulse was published on Google Play under the name “Are You Dead?” before it was renamed SafePulse.
Demumu is cheaper: news reports put it at about $1 as a paid download. SafePulse is $2.99 a month on iPhone and a one-time $4.99 on Google Play, the Samsung Galaxy Store and Amazon. The difference pays for text message alerts, your location in every alert, SOS, and a cloud backstop that alerts your contacts even when your phone is off.
Published as SafePulse on the Apple App Store and Google Play, and as PulseGuard on the Amazon Appstore.