The best app for travel expenses!

Ive been using Trip Splitter for several European journeys, with just two of us as well as multiple friends. Every time, its saved our collective bacon (and friendships!) by accurately dealing with multiple currencies and different splits for expenses.
It really works best when you record expenses immediately after incurring them, and photographing receipts pays off, too (no need to leave the app for this).
On our last trip to the UK, we used it to keep the individual contributions fairly even, so no one ended up owing a huge amount to the others. That really helped.
The app takes a little effort to master, but once you do, its a lifesaver!!

Sean Walmsley about Trip Splitter, v3.0.6