Apple Watch anti-loss for iPhone

Notice it
before you lose it.

While your Apple Watch and iPhone stay linked over Bluetooth, your Watch quietly keeps watch. If they drift apart and the link drops, it lets you know with a tap and a notification — your guard against leaving it behind or having it lifted.

Download on the App Store See how it works
One-time purchase No location tracking 7-day free trial
Omamori Anti-Loss app icon
Buy once
No subscription. Pay once, use it forever.
Zero location
No GPS, no tracking. Bluetooth only.
4 languages
English, Japanese, Chinese (Simplified & Traditional) — switch in-app.
No account
No sign-up. Open it and go.
Sound familiar?

That “wait — where’s my phone?” moment.

The longer it takes to notice, the harder a left-behind or lifted phone is to recover. What if you knew the instant you walked away?

Left at the café

You stand up, the phone stays on the table — and you only realize it blocks away.

On a crowded train

In the crush it slips out of reach without you noticing. You want to know the moment it does.

Lost around the house

No idea where you set it down. Ring your iPhone right from your Apple Watch.

How it works

Connect, watch over, alert.

No fiddly setup. Just open it on your Apple Watch — it watches the Bluetooth link from there.

Pairs automatically

Open Omamori on your Apple Watch and it pairs with your nearby iPhone. From then on it watches only your own iPhone.

Watches the link

Your Watch monitors the Bluetooth link to your iPhone — it keeps working even when the app isn’t open.

Alerts when apart

When the link drops and a short grace period passes, your Watch alerts you with a tap and a notification. Choose “keep watching” or “stop.”

Features

Simple — but dependable.

Only what anti-loss really needs, done with care.

Alert when apart

When the Bluetooth link drops, your Watch alerts with a tap and a notification. Tune the grace period by the second to avoid false alarms.

Ring your iPhone

Can’t find it at home? Ring your iPhone straight from your Apple Watch — or make it vibrate instead, where a ring would be out of place.

Fewer false alarms

Pauses while either device is charging, during the quiet hours you set (per weekday), or for a manual 30 min–3 h break. Deliberate separations stay silent.

No location used

No GPS, no location tracking. Your privacy is protected too.

4 languages & themes

English, Japanese and Chinese (Simplified & Traditional), plus a choice of color themes to suit your mood.

One-time purchase

No subscription. Buy once and keep using it with no extra charges.

Honest by design

Honest about what it does.

Omamori is an active guard that detects when the Bluetooth link drops. It does not guarantee constant, instant background alarms — so here’s exactly how it works.

  • 1Detects in secondsWhen the link drops, it typically notices within a few to a dozen-odd seconds.
  • 2A grace periodA momentary drop won’t sound the alarm — it waits out the delay you set first.
  • 3It won’t ring foreverIt nudges you 5 times over about 4 minutes and then stops — watchOS will not let an app loop a haptic in the background.
  • 4You’re in controlAfter an alert, choose “keep watching” or “stop” to fit the moment.
Privacy

No location. No account. No tracking.

It watches only the connection — never a record of where you go.

Never uses location

No GPS access at all. All it needs is Bluetooth and notifications.

No account needed

No email, no phone number. Start the moment you open it.

Data stays on device

Nothing is sent to a server. Your information stays with you.

Only your own phone

It watches only the iPhone you paired — never anyone else’s device.

Pricing

Buy once. Keep it for good.

Start with a free trial. Like it? Just one purchase.

One-time purchase
Buy once / no subscription
Includes a 7-day free trial. After the trial, a single purchase — no extra charges.
  • Alert when apart, with keep-watching / stop
  • Ring your iPhone from your Apple Watch
  • Auto-pause on charge & adjustable grace period
  • Future updates included free
Get it on the App Store
FAQ

The things you’re wondering.

How does it detect that they’re apart?+
Your Apple Watch monitors the Bluetooth link to your iPhone. When the link drops and a short grace period passes, it alerts you with a tap and a notification. No location data is used.
Does it work when the app isn’t open?+
Yes, it works even when the app isn’t open. That said, it doesn’t guarantee constant, instant background alarms — it’s an active guard that typically detects a dropped link within a few to a dozen-odd seconds.
Do I need location or an account?+
Neither. It never uses location or GPS, and there’s no account to register. The only permissions it needs are Bluetooth and notifications.
Can it watch someone else’s iPhone?+
No. It watches only the iPhone you paired. Unpair anytime, and it re-pairs when you next open it nearby.
Is it a subscription?+
No — it’s a one-time purchase. After a 7-day free trial, buy once and use it forever with no extra charges. Future updates are free.
What if I get false alarms?+
Bluetooth is affected by your body, walls and a crowded 2.4GHz band, so the link can drop for a moment even with the phone right there. First try a longer grace period on the Watch (12–15 seconds). Beyond that, watching pauses automatically while either device is charging, you can set quiet hours per weekday, and you can pause by hand for 30 minutes to 3 hours. Whenever it is paused, the Watch tells you which rule is holding the alert.

Notice it before you lose it.

Turn your Apple Watch into anti-loss for your iPhone. Start today.

Download on theApp Store