Formula Foundry is a very useful add-on for anyone working with complex spreadsheets in Google Sheets. It makes building and debugging formulas much easier with its structured editor, especially for long formulas like `IF(AND(A2>0, B2<100), INDEX(C:C, MATCH(A2, D:D, 0)), "")` or nested lookups combining `INDEX`, `MATCH`, and conditional logic. The ability to reuse snippets and variables also saves a lot of time across multiple sheets. The Excel-to-Sheets translator is helpful when moving models between platforms, though it still needs some manual adjustments for more complex formulas like array formulas or `XLOOKUP` conversions. The AI suggestions are a nice addition, but they’re not always accurate and should be double-checked. Overall, it’s a solid productivity tool that reduces errors and speeds up workflow, especially for users dealing with advanced formulas regularly.

I was part of the development team for Formula Foundry, since the inception of testing the product I loved the idea and the founders of the product, Being a Data Analyst and Scientist this became a game changer for my everyday tasks, their ease of use and tutorials really help new comers and make the general use of Excel/Sheets much more easier and simpler.

Variables and VLOOKUP are extremely useful here. It allowed me to transfer my Excel skills to Sheets while processing logic in far fewer steps than I thought possible. Keeps my sheets incredibly clean.

Simplifying complex formulas is finally possible. The snippets and multi-tab editing features are genuine game-changers for my daily pipelines. It’s built exactly for the pain points data people deal with.