I've loved using this calendar for years. My favorite feature is the bar view in the month calendar. I haven't found any other calendar app that does it this well. But recently they ruined the free version by showing full-screen pop-up ads that play for up to 15 seconds before you can get back to your work. I may have paid for the full version before they did this, but not now. If they're going to force uses to pay up $7 to remove such intrusive ads, I'll just move on to another app.