this post was submitted on 11 Nov 2025
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Hello selfhosted community,

I need a privacy respecting alternative for an Apple AirTag. I recently bought my first expensive bike and i would like to know where it is, as it will be used by multiple people.

I know gps service costs something and I am willing to pay for it but I do not want any location data ending up somewhere it shouldn’t.

Thank you.

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[–] AllNewTypeFace@leminal.space 7 points 1 day ago

The problem is that GPS signals are weak, and generally need a line of sight to the sky. Phones don’t rely on GPS alone, but also get location data by triangulating base stations and/or querying databases of WiFi SSIDs over the internet. And AirTags don’t contain either a GPS receiver or an internet connection: they’re just simple, low-power Bluetooth beacons which send an encrypted ID to any nearby iPhones, which add their locations and forward it to Apple.

Basically, all the smarts are in Apple’s infrastructure (including the numerous privately-owned devices running Apple’s location services). Replicating this without a network of roving receivers is a nonstarter.