Not all of us are always on a computer monitoring our portfolio. For casual investors who isn't 24/7 following the market, you can set alerts for your stocks depending on your conditions. We didn't want people to have to download anything, or install anything. Simply open a web browser, enter your Pagerduty Service Key, and you will be able to configure your alerts. Come back any time, and those alerts will be still there and you can even resolve them on the site.