Which one should you choose?
Pick the tool for the job, not the brand. Most people only need a fraction of what any of these apps can do.
- Choose Foglio if you want a free, fast, private app that opens and saves Excel files on your Mac without an account or subscription.
- Choose Excel if you rely on macros (VBA), Power Query, real pivot tables, advanced charts, or you must match your company's files to the pixel.
- Choose Numbers if you build documents that should look beautiful, mostly for yourself, and you live in Apple's ecosystem, including iPhone and iPad.
- Choose LibreOffice Calc if you need a free app with pivot tables, macros and a huge feature set, and do not mind a large, non-native app.
- Choose Google Sheets if several people edit the same sheet at the same time and you are comfortable working in a browser with a Google account.
Where Foglio wins
Foglio is the smallest app in this comparison by a wide margin: a 7.5 MB download against hundreds of megabytes or gigabytes for the desktop alternatives. It opens to a usable window in 0.24 s, uses about 58 MB of memory with an empty sheet and sits at 0 % CPU when idle.
It is free with no conditions, open source, and works completely offline with no account. Unlike Numbers it edits .xlsx files in place instead of converting them, and on an Italian, German, Spanish or French Mac you type formulas with the same localized function names Excel uses.
Where the others win
Excel is far more complete: macros, Power Query, real pivot tables, many more chart types, and the reference behaviour for every Excel file. LibreOffice also has pivot tables and macros, plus a drawing layer and many more import and export formats. Google Sheets has the best real-time collaboration and runs on any device with a browser. Numbers and Excel have iPhone and iPad apps; Foglio is Mac-only.
Foglio is a 1.0 release by a small open-source project. The big suites have decades of polish behind them. If a file matters, keep a backup.