Have you ever been responsible for the budget on a journey with a group of poeple ?
SAS' Skipper (coming from managing sailing trips) helps you with that:
Just enter the expenses for each of your companions and you'll have an overview about shares, debts and credits within seconds.
It allows adding individual shares for food and non-food entries for each person , sends reports about balances and results via e-mail and helps you spending your time on enjoying you holiday instead of calculating and counting.

For those with an AppleWatch, you can make all records also with the watch.