Made for iPhone + Apple Watch

Never leave your
iPhone behind.

PhoneTether gives you a clear warning on your wrist when your iPhone may have been left behind—and keeps reminding you until you reconnect or acknowledge it.

Coming soon to theApp Store See how it works
PhoneTether icon: an iPhone and Apple Watch connected by an alert signal
No account No location tracking No ads or analytics No internet connection needed

Simple protection

Turn it on. Wear your Watch. Go.

PhoneTether is designed to be useful without asking you to understand Bluetooth settings or technical status screens.

1

Turn on protection

Open PhoneTether on your iPhone and Watch, allow alerts, then tap one clear button.

2

Walk away

If the private Bluetooth link is lost beyond your grace period, your Watch starts warning you.

3

Get your attention

Reminders become more insistent and continue until your phone reconnects or you acknowledge the alert.

Apple Watch face showing the PhoneTether OK protection status

New Watch-face widget

Your protection status, right on your Watch face.

Add the optional PhoneTether complication to the Watch face you wear. A short label shows when you are protected, reconnecting, separated, or switched off—without opening the app.

  • OK means your Watch is ready to warn you.
  • LINK means PhoneTether is reconnecting.
  • ALERT means your iPhone may be left behind.
  • OFF means protection is turned off.
Learn how to add it

Hard to miss. Easy to stop.

A warning that does not quietly disappear.

One forgotten phone can mean a ruined evening, a long drive back, or a much bigger problem. PhoneTether starts gently, then escalates its Watch reminders when you remain apart.

  • Choose a short grace period before warnings begin.
  • Sound and haptic alerts follow your Apple Watch settings.
  • Reconnect automatically by returning to your iPhone.
  • Acknowledge an alert when leaving the phone was intentional.
!
iPhone may be
left behind
Reminder 3
Acknowledge

Private by design

Your routine is none of our business.

PhoneTether does not create an account, request your location, run advertising, or send app activity to Toyz2k servers. The iPhone and Watch communicate directly using Apple’s system services.

Read the privacy policy

Good to know

Straight answers.

Does PhoneTether need an internet connection?

No. After PhoneTether is installed, separation protection works directly between your iPhone and Apple Watch. An internet connection is not required for protection.

Does PhoneTether track my location?

No. PhoneTether does not request location permission, record where you go, or calculate your exact distance from the phone.

Does it work if my Watch is silent?

PhoneTether requests sound and haptic alerts. Silent Mode, Focus, and watchOS notification rules can affect what you hear, so haptic alerts should also be enabled in Apple Watch settings.

Will it alert at an exact number of feet?

No. It detects loss of the Bluetooth link, not physical distance. Walls, interference, device state, and Apple’s background behavior can change when an alert arrives.

What do I need?

A compatible Apple Watch paired with an iPhone, with PhoneTether installed on both. The initial release requires iOS 18 or later and watchOS 11 or later.

PhoneTether

A warning on your wrist can save a long drive back.

Coming soon to the App Store for iPhone and Apple Watch.

Setup & support