I regret using it. Well, the apps itself is fine, I have used it for over 6 months. It's easy to navigate. It's not ideal but understandable to have the export calendar function as a pro feature. But then, my phone malfunctioned and I was unable to access this apps. There is no online syncing or a web version so that I can refer back to. edit: I have try the syncing method in FAQ. Most of my calendars are local calendars which I fail to sync or switch them to Google calendar.