The website allows you to manage and monitor your events.
Using the web, you can fully manage your events. For some users, working on a PC is easier than using a mobile app — especially when typing or adding email addresses, where a keyboard and larger screen make things more productive.
Some users may prefer the web interface for tracking. For example, at work (if you're allowed to check a website now and then), it’s easier to open a browser tab than stare at your phone.