You are traveling with a group of friends, a budget in mind for transportation, accommodation, food or other categories. You dont want to bother with cost splitting and just want an easy way to settle debts at the end of your trip.
Cosum works offline, so we dont need any data (no more need of slow hostel wifi) and gives all information about every member budget and balance in multiple currencies.
We are still working actively on this app and will add more and more features.