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Watch 4 my Phone - Lost Alert

Watch 4 my Phone - Lost Alert

Left Behind Phone Buddy

48 ratings
43 reviews
🔧 Utilities
📊 Productivity
$3.99

Details

  • Released
  • Updated

Features

Developer

Iztok Trost
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About

This app helps you avoid losing your iPhone by sending alerts to your Apple Watch if you leave it behind. It also monitors your iPhone's battery level and last known location directly on your watch.

✓iPhone LOST alert on Apple Watch
✓Critical Alert sound option
✓iPhone location tracking
✓Monitor distance to iPhone
✓iPhone battery level monitoring
✓Customizable battery level notifications
✓Complications for watch face
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What's New in Watch 4 my Phone

2.9.2

October 30, 2025

Added support for iOS 26 and watchOS 26

User reviews

Most RecentHighest RatedLowest Rated

Hi

Hju
omaralazomaralaz

Keeps giving off false lost notices

I keep getting iPhone lost alerts, even when the phone is next to me. I hopped this would help me but with constant false alerts ….
wynn kingwynn king

Response from developer

I have published an update to the app that addresses the issues you experienced. The new version 2.9.2 should resolve the false alarms and detection problems. Would you be willing to give the app another try with this latest update? I would greatly value your feedback if you do. Thank you again for your feedback and for helping me improve the app.

Looks good

I’m tired of hunting down my phone!!
wynn kingwynn king

Response from developer

Thanks for the feedback and for using Watch4 myPhone.

バッテリー消費が激しすぎる

locationaccess機能を使っているとapple watch、iphone共にバッテリーがすぐ無くなります。
正確な位置情報まではいらないので、watchとiphoneのBluetooth接続が切れたら通知してくれるくらいで忘れ物防止には十分なのですが…。

※追記
お返事のように設定したところiphoneのバッテリー使用量はほぼ無視出来るくらい抑えられました。ただapple watchは依然として減りが多いですね。ultraシリーズじゃないと実用に耐えません。
けザワ東けザワ東

Response from developer

There is also app setting to use less battery. If you change "Location Accuracy" to Wi-Fi 1 or 3 km, the app will not use GPS for location updates, but it will still refresh location frequent enough and with Wi-Fi enabled, location will be enough accurate in urban areas.  Beside that, you can also stop updating location on iPhone and you will still get notifications on Apple Watch, only without iPhone location. This will save battery on iPhone even more. All other functions will work as intended.

Great little app

This app lets me know when the phone is not with me. I love it.
MacRhinoMacRhino

Response from developer

Thanks for the feedback and for using Watch4 myPhone.

See 38 more reviews

FAQ

What does Watch 4 my Phone do?

Watch 4 my Phone helps you avoid losing your iPhone by sending alerts to your Apple Watch if you leave it behind. It also allows you to monitor your iPhone's battery level and its last known location directly from your wrist.

What are the key features of this app?

Key features include 'iPhone LOST' alerts with an optional Critical Alert sound, iPhone location tracking, distance monitoring between your watch and phone, and real-time iPhone battery level monitoring with customizable notifications. It also supports Complications for your Apple Watch face.

How much does Watch 4 my Phone cost?

This app is a paid application. You get a premium version with all features included, and there are no in-app purchases or advertisements.

What devices is Watch 4 my Phone compatible with?

The app requires both an iPhone and an Apple Watch. The primary settings and alerts are managed through the app on the Apple Watch, and it also utilizes features on the iPhone for tracking and battery monitoring.

When would I use Watch 4 my Phone?

You would use this app to receive immediate alerts on your Apple Watch if you accidentally leave your iPhone behind, such as at a restaurant or a friend's house. It's also useful for keeping an eye on your iPhone's battery status throughout the day without needing to check your phone directly.