Liedgutverzeichnis VS Traccar

It connect * Paseo (version 1.4.8): A free and open source step counting app. * CovPassCheck (version 1.17.0): Quickly check EU Digital COVID certificates with the app. * CovPass (version 1.17.0): Prove your vaccination, recovery, or negative test result. * Standard Notes (version 3.9.12): A simple and private notes app * Liedgutverzeichnis (version 2.15.0): An app that knows which song is to be found in which book at which page. * Simple Dialer - Manage your phone calls easily (version 5.11.4): A handy phone call manager with phonebook, number blocking and multi-SIM support * Briar (version 1.4.4): Secure Messaging, Anywhere * Volta (version 1.0.3): Additional actions on volume buttons

Liedgutverzeichnis (version 1.3.3): An app that knows which song is to be found in which book at which page.

I use https://www.traccar.org/ 👍

I suggest traccar - https://www.traccar.org/, open source and it's already complete with a server and web interface. Now you need a gps device, one that's supported by traccar - https://www.traccar.org/devices/. I suggest getting one that's capable of making http requests because it's easier to integrate with traccar (for this you'll need a sim card with data), compared to going with an SMS route where you need a way for your server to receive SMS texts.

Traccar I'm not as familiar with but seems like a promising vehicular oriented one https://www.traccar.org/

Spotlight on Traccar, a self-hosted, open-source platform for GPS device tracking

Open source GPS tracking platform - Traccar (https://www.traccar.org/). I think picking a small B2B niche is the best way to become successful. You're not going to be super rich, but you can have a good stable lifestyle business.

Since your title contains "Real-time" I assume gagamit kayo ng GPS, then might I also suggest traccar, https://www.traccar.org/, complete with server and client, easily integrated with OpenStreetMap