Someone spent time creating this app? OK, I agree that some people have to be told not to drink to excess, but I've found that if you have to be told not to drink to excess, you will also ignore any attempts to stop you from drinking to excess.

Let's have a little personal responsibility instead. If you are going to an office party, you are essentially "at work", and unless drinking is allowed at your workplace during working hours, you should abstain. If you feel uncomfortable abstaining, though I don't understand why anyone would, then drink some gingerale with a lime wedge and don't make a big deal of what you're drinking. And while you're at it, since you're sober, you'll have the coordination to take video of the idiots who are drinking. I see opportunity for blackmail.