The verdict
Buy Google Workspace first, add Airtable when you outgrow Sheets. These tools don't compete; they sit in different layers of your stack. Google Workspace is the foundation, email on your own domain, real-time Docs and Sheets, Meet for calls, Gemini woven through it all, at a 7 USD/user/mo entry that's hard to argue with for a whole team. Nearly every B2B company needs it.
Airtable earns its place the day a flat spreadsheet stops holding your operation together: when you need linked records, the same data as both a grid and a kanban board, forms feeding a database, or a small internal app, without hiring an engineer. That's a real, valuable capability Workspace simply doesn't have. The trap is treating them as either/or. The honest answer for a lean founder is Workspace as the baseline, and Airtable layered on when a specific workflow demands relational structure.