SheetBrain is an AI-powered Google Sheetsâĸ add-on that helps users generate, explain, and debug formulas without leaving their spreadsheet. It reads the active sheet's structure so formulas reference the user's actual headers, ranges, and data types instead of generic examples. Users can open the SheetBrain sidebar to generate formulas from plain English, explain existing formulas in simple language, or debug broken formulas and apply the fix back to the sheet. The add-on also includes a =SHEETBRAIN() custom function for quick formula generation directly in cells. Pricing: Free plan includes 15 AI calls per month. Pro is $9/month and includes 1,000 AI calls per month. Google Sheetsâĸ is a trademark of Google LLC.