Build an Android app that monitors the user's location and then records this information to a Firebase database, so you can view the device's exact coordinates in realtime.

Health-tracking apps and devices can offer insights into your overall health and well-being. However, some of these tools may be sharing your data with other companies and potentially the government.

As more shopping is done online and fewer people are home to receive deliveries, tracking your packages has become increasingly important. Here's here's the right way to do it.

Using the iOS App Tracking Transparency, your iPhone will let you immediately decide whether you want any third-party app to track your online movements.

The hope is that smartphone tracking — combined with widespread testing — can help create a framework for cities to let people resume their lives.