Left Behind: Don’t Forget

In-app purchases
Content rating
Everyone
500+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Forgot your wallet, keys, laptop, medication, or charger?

Left Behind is a departure reminder and leaving checklist for the things you do not want to forget.

When Left Behind detects signs that you may be leaving, it sends a notification. Tap the notification to open the checklist for that place or routine.

CREATE YOUR OWN CHECKLISTS

Create lists for going out, work, school, the gym, travel, or any other routine. Add only the items that matter to you.

Left Behind uses your routine, movement, and optional trusted Wi-Fi to select a relevant checklist at the right moment.

USE IT FOR

• Wallet, keys, phone, and charger
• Laptop, access card, and work equipment
• Medication and important documents
• Gym clothes, water bottle, and headphones
• Travel essentials
• Any custom routine or destination

YOUR FIRST 5 DEPARTURE CHECKS

All features are available until you have opened five checklists from real departure alerts.

No account or payment card is required.

After the five included checks, a subscription is required to continue using automatic departure alerts and your checklists.

PRIVATE BY DESIGN

• Does not track or store GPS coordinates
• No Left Behind account required
• Trusted Wi-Fi names are converted into identifiers before being stored
• Original Wi-Fi names are not stored
• Checklist content stays on your device
• The microphone is activated only when you choose voice input

Android may classify access to a Wi-Fi name as Location permission. Left Behind uses this permission for optional trusted Wi-Fi detection and does not request or store GPS coordinates.

Set it up once and get one last check before you walk out the door.
Departure checklist & reminder—never leave keys, wallet or phone behind.
Updated on
Aug 14, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
HEEJUN YANG
hyappdev1991@gmail.com
551 Steeles Avenue West 44 Toronto, ON M2M 3Y1 Canada

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