Experimental version 1.4.0 (130)
This version supports SABRE plugins. "SABRE" is short for Special Activity Broadcast Receiving Engine. A SABRE plugin is a standard Android app acting as a bridge between crowdsourced data and apps that support the SABRE protocol.
Download Speedtrap Alert v1.4.0 (130)
Download the SABRE plugin providing crowdsourced road alerts. Install this apk file as usual and disable its battery optimizations to allow running in the background. Speedtrap Alert app attempts to start this plugin and shuts it down when closed.

More readings about the plugin.