Part of our Getting On The Air guide.
You do not need a radio with a built-in TNC to get onto APRS. A collection of solid phone apps lets you track, message, and monitor the APRS network directly from a device you already carry everywhere.
How Phone-Based APRS Actually Works
Most APRS phone apps connect to the network over the internet rather than transmitting RF directly from the phone itself, pulling position and message data through APRS-IS internet gateways. Some apps can pair with an external Bluetooth TNC or a radio’s built-in Bluetooth KISS TNC mode, like on the VGC VR-N76, to actually transmit real RF APRS packets, blending phone convenience with genuine radio transmission.
What a Good APRS App Actually Gives You
- A live map view of nearby stations and their reported positions, which is far more usable than trying to read raw APRS data off a small radio display.
- Messaging directly to other APRS stations, letting you send and receive short text messages over the network.
- Weather station data display, since many APRS-connected stations report live local weather conditions.
- Beacon configuration, letting you set how often your own position transmits and customize your status message.
Internet-Only vs RF-Capable
An internet-only APRS app is genuinely useful for monitoring and messaging but does not actually put your position on the RF network the way a real radio-transmitted APRS beacon does. If genuine RF APRS transmission matters to you, whether for redundancy in a grid-down scenario or just to participate in the actual radio side of APRS, look specifically for an app that supports a Bluetooth KISS TNC or pairs with a radio capable of Bluetooth APRS output.
Choosing the Right App for Your Setup
For the radio-side setup, see APRS on the VGC VR-N76: Bluetooth KISS TNC Setup.
If you already own a radio with Bluetooth KISS TNC support, pick an app specifically compatible with that pairing rather than a generic internet-only tracker, so you get genuine RF transmission alongside the convenient phone interface. If you just want to monitor and message over APRS-IS without transmitting RF yourself, any well-reviewed internet-based APRS app will serve you fine.