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QuadExcel.com
VisiCalc on the Apple II

In 1978, Dan Bricklin and Bob Frankston took out a loan to fund development of "Calcu-ledger," the very tool that could project if taking out a loan were fiscally prudent. In 2025, VisiCalc still has the necessary precision to express the hundreds of billions in spreadsheet profits generated since.

Stone Tools
GRID — Comparison of spreadsheet software

We compared popular spreadsheet engines—feature sets, function support, accuracy, and speed—and how GRID compares to Excel, Sheets, and the rest of the field.

Standard Notes might be the best note-taking app on the market

If you're looking for a note-taking app that can sync across devices, don't overlook the open-source Standard Notes.

ZDNET