I actually used a MacBook Air 2011 up until summer 2020 as my main home computer. The only reason I even bought a new MacBook was because I couldn't get the newest version of macOS which I needed for the latest version of Xcode.
Finally sold the 2011 MacBook Air a few months ago for $300. I got so much value out of that laptop.
I've been tracking every expense for over 10 years ever since I got the iPhone 3GS.
At first I used budget apps I found on the App Store. I eventually made my own in 2013 that got moderate success but I never had much time to work on it. I decided to create a new app using SwiftUI and to add syncing and sharing budgets with other people.
I've always preferred to enter transactions manually. It adds friction to spending and I find it helps me be more mindful of my spending. I do plan to eventually add the ability to link bank accounts for people who prefer that.
It just got approved for the App Store a week ago. I would love to get some feedback. :)
Finally sold the 2011 MacBook Air a few months ago for $300. I got so much value out of that laptop.