I have been used the NomadWallet app since it was in beta, the app solves the problem of tracking travel expenses in a very simple and effective way. I also like the clean and beautiful UI of the app.
I saw it on App Store and then contacted makers for suggestions, they listen and improve it quickly! It has a generous free period which you can fully see it yourself and buy for a really small amount to support them.
It's very intuitive because it is made by those who need to use it directly. I look forward to a continuous update.
Nomadic lifestyle is not just sandwiched by short trips. Long trips may need to have mini trips within them. The app didn't feel like it easily included this type of lifestyle.