Pretty neat idea, although GoCatch isn't very big here in Brisbane!
Cortana (and I assume Siri) do this out of the box. You just say "show me stores that are open right now" and voila. You can even get more specific and say "show me mexican restaurants that are open right now." You can probably get more creative but I haven't tried yet.
I use https://www.splitwise.com/ for this. Works well for everything from big expenses to burgers. Use it in my flat too.
It's called an office manager. Combined with an expense account for the company.
> - App for finding which stores are open at 11pm (or on Sunday in places where most things are closed on Sunday)
It's called Foursquare. Bonus, it does this for a radius around your current location and when it doesn't have official data, it makes a guess based on check-in data.
> - Swarm - Reverse how people get taxis, register that you're looking for a taxi and expose to taxi drivers where all the people are
It's [probably] called the Uber/Lyft interface from the drivers' side.
> - Reverse registry - wedding registries are obnoxious...register your gift so that people don't buy the same thing.
Haven't reached the Omg Everyone Is Getting Married age, but I'm sure this also exists already.
> It's called an office manager.
No office manager I've ever had would purchase anything and then seek divided reimbursement from individuals in the office.
If you know the couple well enough to get a meaningful gift that is not on the registry, go for it, but I've been to plenty of weddings where I was not close enough to the couple to know their tastes/needs for something as personal as homegoods. No one wants to embark on their new life as a married couple with a bunch of stuff cluttering their house that they'll never use and just have to drop off at Goodwill (or worse, go through the hassle of returns - how many different stores would the gifts come from with no registry?), and no one wants to buy a present knowing that's what will most likely happen to it.
- Group purchasing for work - what if you wanted to break the cost of a Foosball table up over a group of people. It's cheap if you have enough people involved.
- App for finding which stores are open at 11pm (or on Sunday in places where most things are closed on Sunday)
- Swarm - Reverse how people get taxis, register that you're looking for a taxi and expose to taxi drivers where all the people are
- Reverse registry - wedding registries are obnoxious...register your gift so that people don't buy the same thing.
edit: formatting