GPS Link is a free Android app that allows you to share your GPS location with others in realtime. It also offers a feature to use with any HTML5 page and Chrome extension, which can be useful for testing HTML5 geolocation applications.

To share your location with others, simply install the app and start a new location sharing party. Then, send the link to other people to join the party. To use with any HTML5 page and Chrome extension, you need to install the app first, then install the GPS Link extension from the Chrome Web Store. After that, click on the GPS Link icon in your desktop Chrome browser and pair your phone with the desktop using a QR code or URL.

Overall, GPS Link is a simple and useful app for sharing your GPS location with others in realtime or using it for testing HTML5 geolocation applications. If you are looking for an app that can help you share your location with others or test HTML5 geolocation applications, GPS Link is definitely worth a try.