There's something honest about a person who builds their own tool because the existing ones don't fit. That's exactly what this creator did: took a spreadsheet they had refined over years, turned it into a web app, and put both out for free. We think that's the right instinct, and it points to a deeper truth about how people actually want to work with their finances.
Most financial apps try to simplify by hiding the data. They give you a dashboard with nice colors and a few percentages, but they strip away the context. A spreadsheet, by contrast, shows you everything at once. You see the rows, the columns, the formulas. You understand how one number connects to another. That's what this creator preserved when they built their web app. They kept the "large screen" feel, the ability to scan a full year of cost-of-living data and savings rates in a single view. What they improved was the workflow. Faster input, less friction, same clarity. That's a trade-off worth making.
The decision to share both versions for free is also telling. It's not a marketing stunt. It's a genuine experiment: which approach do people actually prefer? The answer matters because it reveals something about user behavior. Some people will always want the raw control of a spreadsheet. Others will gravitate toward the speed of a purpose-built interface. Neither is wrong. The important thing is that the logic underneath, the annual view, the savings rate calculation, the cost-of-living breakdown, remains the same. The tool changes, but the financial clarity doesn't.
If you've been managing your finances with a spreadsheet that works well enough but feels slow, this is worth exploring. The app keeps what matters and removes what doesn't. And if you prefer the original spreadsheet, it's still there. That's the kind of choice most financial tools don't give you. We'd like to see more builders follow this example: start with logic that's proven, then ask users which interface they actually want to use.