Hacker News Reader

I'm unfamiliar with these apps. What is geofencing used for? Automatically alert you if there is ICE activity nearby so that you can drop what you're doing to converge ?

View on HN

There's an alerting feature and an attempt to stop false reports. The map part is trivial (and I think someone is already scraping the locations into a web app), but the geofencing capabilities are more difficult.

I believe it serves two purposes:

1. Reduce false reports by ensuring that activity reports are reasonably geographically near the reporter's location

2. Send alerts to people who are near a cluster of reports.

Reply on news.ycombinator.com