Grid by Zaweba on Mac and Linux: what's the same
Grid by Zaweba also runs on macOS and Linux, sharing its engine with Windows, with Cmd shortcuts, a native Mac menu bar, CUPS printing and secure key storage.

Households and offices rarely run on one kind of computer. A laptop might be a Mac, the desktop Windows, and the old machine in the spare room running Linux. Grid by Zaweba runs on all three, so the same spreadsheet app, and the same files, can follow you around.
One engine, three systems
The Mac and Linux versions share Grid's engine and window logic with the Windows version. The engine is the part that matters most: the functions, the formula rules, dynamic arrays, LET and LAMBDA, the date system and number formats. Because it's the same engine, a formula gives the same answer whichever computer you open the workbook on.
The window logic being shared means the layout and behaviour are familiar too. The ribbon, the formula bar, the grid, the dialogs and the way tools work carry across, so moving between computers doesn't mean relearning anything.
The Mac and Linux versions are built with Avalonia, a toolkit for making one app run on several systems, which is how the shared logic reaches both.
Fitting in on a Mac
On a Mac, Grid uses Cmd shortcuts where Windows uses Ctrl, so the shortcuts your fingers already know on a Mac work as expected. It has a native Mac menu bar at the top of the screen, where Mac users look for menus. The supported systems are macOS 12 or later, on Apple silicon and Intel.
Fitting in on Linux
On Linux, Grid runs on 64-bit systems, both x86 and ARM. Printing goes through CUPS, the printing system most Linux distributions use, so your printers are available in the usual way.
AI keys on each system
If you connect your own AI account, the key is stored with each system's own secure storage: Keychain on a Mac and the secret-service store on Linux, as it is encrypted for your account on Windows. Nothing about the AI being optional changes: actions stay greyed out until you connect an account, and nothing is sent until you ask.
Moving files between computers
Grid's own .zagr files are .xlsx inside, and Grid also saves .xlsx, .ods and CSV. A workbook made on Windows can be copied to a Mac or a Linux PC and opened in Grid there, or saved as .xlsx for someone using a different spreadsheet altogether. Formulas, formatting, tables, charts and notes go with it.
A practical pattern for a household with mixed computers is to keep shared workbooks such as the budget or a holiday plan in one folder that every computer can reach, as .zagr files, and open them in Grid on whichever machine is nearest. Because the engine is shared, everyone sees the same figures.
Same promises everywhere
On every system Grid is free software under the EULA, works offline, and needs no account. Your figures stay on your computer. If you've been looking for an .xlsx-friendly spreadsheet for a Mac or a Linux machine without a subscription, Grid by Zaweba is the same app you'd get on Windows.