Fair enough! I looked at Tiller but the 79$ a year price tag discouraged me in the end and adding transactions to my google sheet is just part of my routine now. Good luck!

I had the same need and ended up building my own google sheet. Once a year I enter all fixed recurring transactions for the year (e.g. rent, subscriptions, estimated utilities etc.) as well as all future credit card payments using sumifs that update as I enter daily transactions with a column flagging which card I used. It's not for everyone as you do need to enter all transactions manually but once you get in the habit it's actually not that much work at all and you have very accurate visibility into your future cashflow so you know exactly how much you can spend.