In the 2 years I've been using Moneon, I couldn't find a valid alternative - my primary requirement was the ability to synch different financial balances between different users, with restricted access. So, for example, I'd have a balance of my own (which only I could access), a shared balance with my wife, a separate budget for the kids, and so on. Moneon does this FLAWLESSLY.
There's only one thing that has upset me a bit. I really liked the fast adding of expenses via the 3D touch of that "+" icon on iOS devices, but now it activates voice input. I'd be super happy if you brought back that function instead of (or as an addition to) the voice-controlled adding!
Flawless synchronization between users and devices (perfect for couples, families, creative teams); easy to use; pleasant design
I couldn't find a better alternative. Been using it for 2 years and am super happy.