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Postbox

Line Zpotting Tools

LoRa mailbox sensor companion — mail alerts, activity log, battery status.

Downloads
7+
on Google Play
Price
Free
No in-app purchases
Updated
Jul 25
2026 · v1.1
Get it onGoogle Play See alternatives

Screenshots

  • Postbox screenshot 1
  • Postbox screenshot 2
  • Postbox screenshot 3
  • Postbox screenshot 4
  • Postbox screenshot 5

About Postbox

Postbox is the companion app for your LineSpotting mailbox sensor.

Connect with the sensor code from your kit, then see when your mailbox was opened — with timestamps, battery estimate, and a simple activity history.

**What you get**
• Mail-arrival status ("You have mail" when recently opened)
• Timestamped activity log from your LoRa sensor
• Battery level estimate from sensor voltage
• Pull-to-refresh and background checks every few minutes
• Phone alerts when a new mailbox opening is detected
• DEMO mode — enter DEMO on the login screen and a demo device will appear

**Requirements**
• A Postbox LoRa sensor kit from LineSpotting (sensor code required)
• Notification permission for mail alerts

**Privacy**
The app reads your sensor feed to show mailbox events. No ads. No data sold.

LineSpotting AB — https://linespotting.com/privacy-policy/

What’s new

Version 1.1 · Updated July 25, 2026

First public release of Postbox. Keep track of your mail and get notified.

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