Moneybuster works with nextcloud cospend and ihatemoney, maybe that's worth looking at
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
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Splid is great. Simple yet feature-rich if you need it. If you want to create many different groups for splitting it’s just a small one time fee instead of monthly. If two groups is fine or you just want to join groups it’s free.
And best of all: there is no need for an account! In fact there is no account you could create.
Update: Missed in which community I’m in. The App sadly isn’t FOSS and isn’t in the fdroid-store. But it doesn’t change my opinion about it :)
What’s wrong with Splitwise? The only other alternative I know is Tricount but it’s worse in all aspects
There's nothing wrong with it.
I use moneybuster synchronized to my nextcloud, but it can synch to ihatemoney. Maybe it has more features than you want.