I like Cashew for tracking spending & saving, it gives a nice visual overview of everything. You do have to input things manually but it's up to you how much effort you put into that (e.g. you could just do that monthly or weekly). It's very customisable and the app is FOSS (a free and open source service)-- the 'open source' part is very reassuring for data security.
I use the money saving expert website - I think they also have an app?
It helps you find the cheapest utilities, insurance & mobile phone service suppliers, best bank accounts, loans & credit cards, and has a lot of other useful advice too like how to save on heating bills.
