TopLink.

I’m not even signed in but I’m everting notifications about random people posting. Incredibly unhelpful.

App login is not working even though I can log in on website. It says wrong login or password. Please fix it.

This is by far the best way to keep track of your calendar at World Economic Forum events, which can be super complicated. (Note: you must have an account to use it.) It's personalized with your official private sessions, lists speakers for each session, allows you to rate sessions. Also includes participant list with contact info, which you can upload manually into your phone - super helpful. (My only complaint, why it's only 4 stars, is that at Dalian some sessions in which I was scheduled to speak didn't show up. Perhaps it's been fixed since then. Would also be nice if you could add your own meetings into it, or export it into your calendar, so that you only need to look in one place for everything.)