If I saw my friend taking out this app and being a miser about something like this, I'd probably not drink with them again. Hell, I wouldn't drink with myself again if I pulled out this app. I seriously can't imagine someone using this in a social setting and not being ridiculed for it.
Could you imagine at the end of the night, pulling out your phone and saying... "hey everyone, look, I only drank this much and I'm not going to put any more money towards the whole tab."
Most of the time, the people who would even care about the tab are the people who aren't drinking! Why would they even need this app?
Really, I hope my friends are honest enough to put their share of the tab up or suck it up and just pay a bit more knowing that the next night of drinking maybe they save a bit. It all evens out in the end between friends.
Spending time and money implementing ideas like this are exactly why we are in a bubble right now. If someone is going to pay $0.99 for this app, but be worried about paying too much for drinks in a group setting, something is really wrong with that person.
Plus, in a large round, who can ever remember what everyone ordered and put it into an app?
Nice looking and all that, but there's no problem here to be solved by an app.
If you and your friend don't have the kind of relationship in which either of you can trust each other or forgive a beer or two, then you don't have the kind of relationship in which you'll automatically trust each other to have pushed the buttons on an app correctly.
It's a beautiful landing page, but I'm not quite sure I understand the problem.. Is this to split tabs? Or to show the bartender, "Hey, I only ordered these drinks, don't charge me for more!" The latter doesn't sound like it'd go over well. Confused.
Also cross reference what the establishment is charging you vs what you actually had, you'd be surprised how many bars and places are willing to overcharge you once you've had a bit too many.
But really - would YOU ever use this app in the intended social setting?
The horse is getting beaten to death already, but the last thing people out drinking want to do is log their drinks in their phone.
If you're out drinking so much that you have to keep track of how many drinks you've had, I doubt you're going to care about being charged for an extra drink or two when you and your buddies split the bill at the end of the night.
Drinking is about loosening up. The use of this app would seemingly inhibit that.
I'd say it was a solution in search of a problem. And the better alternative, I would say, is to not share your tab if you're a bit of a penny pincher.
"Well Cathy, theres even an app to keep track of your tab when your out on the town! Isn't that something John, now off to Simon for the weather"
That said, you are obviously talented designers - the site & the app look really nice & will definitely make a great portfolio piece.
Maybe a slight repositioning as something 'practical' that considers responsible folks consume at different rates - have it know who is in the group, who is 'in' for each round (as folks consume at different rates), then when final bill comes in, it will do a proportional split of final tab based on who is in each round, (also potentially relative drink pricing if different costs beer/mixed/wine), and tipping suggestion for each based on a value you set (18% / 20% / ??). Then app is more friendly to the group, and benefit is you don't overpay/overtip individually or as a group when maybe not thinking clearly when you settle.
You could even add a game element on who's paying the round, or based on random, ongoing bets, ??