Not sure if someone has thought of a way to make this work on here, but as per the title was thinking if there is a way of doing a sacrificial saving system through the App.
For example,
I spend £3.50 every day on a Starbucks, missus wants to go on holiday so I decide that I need to save sufficient funds for a all expenses 5* luxury trip to Southend.
To save these funds I decide not to drink Starbucks anymore ans instead use that money for the holiday.
Would it be possible for the app to recognise that on Mon, Tues, Wed and Thurs I didn’t go to Starbucks and transfer £3.50 to my savings for each day?
However on Friday I was weak and enjoyed a nice latte, thereby not transferring the money.