Left Behind Alarm
Never leave your phone behind
Only for iPhone
$1.99 · Designed for iPhone. Not verified for macOS.
iPhone
“Don’t lose your phone — even after a few drinks.”
Left Behind Alarm is a little charm that catches you before you leave your phone behind.
Tap the big button before you head out, then just keep your phone in your pocket or bag. If you leave it on a table, in a taxi, or at the bar and walk away, it detects that it has stopped moving and sounds a loud alarm.
■ Stops those “oh no” moments
• Left on the izakaya table, noticed only after leaving
• Left in a taxi, restroom, or on the couch
• Too tipsy to remember where you put it
■ Three simple steps
1. Tap the big button before you go
2. Keep the phone on you (pocket / bag)
3. If left behind, it rings after a moment → go back for it
■ Features
• Rings automatically when left behind (no action needed)
• Rings even in silent mode
• Use your own recorded voice or the built-in buzzer
• Adjust the delay to the second
• No ads, no mis-taps
■ Privacy
Recordings and history stay on your device only. No account, no server, no location.
One-time purchase. No ads. No subscription.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• The app now waits quietly for the time you set and only warns you just before it sounds. A long setting no longer means a warning screen the whole time.
• Made in-car mode more robust to vehicle vibration, so it detects a left-behind phone more reliably.
The developer, SHUNTA ENDO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SHUNTA ENDO
- Size
- 908.3 KB
- Category
- Lifestyle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Shunta Endo

