Formula Foundry vs SheetAI
Formula Foundry
formulafoundry.ioSheetAI
sheetai.appSide by side
| Figure | Formula Foundry | SheetAI |
|---|---|---|
| Price from | $15/mo | $12/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| API | — | Yes |
| Plans published | 4 | 10 |
| Spec score · Spreadsheet apps | 8.0 (#20) | 8.7 (#10) |
| Spec score · AI Spreadsheet Tools | 8.2 (#21) | 8.3 (#18) |
| Formula generation | Yes | The service includes unlimited formula generation on the BYOK plan. |
| Free plan | Yes | Yes |
| Primary platform | multiple | google_sheets |
| Table transformation | No | Yes |
Plans
Formula Foundry
- FreeFree
- Pro$15 a month
- Business$24 a month
- EnterprisePriced on request
SheetAI
- FreeFree
- Starter$12 a month
- Pro$29 a month
- Pro Yearly$290 a year
- Credit Pack - $29$29 a month
- Credit Pack - $79$79 a month
- Credit Pack - $139$139 a month
- Credit Pack - $299$299 a month
- Credit Pack$299, paid once
- BYOK FreeFree
In their own words
Formula Foundry
Formula Foundry has no write-up on Specifiction yet; its figures are above.
SheetAI
SheetAI is a Google Sheets add-on that runs AI formulas and media generation inside spreadsheets. It supports formula generation, table transformation, spreadsheet analysis, workflow automation, custom functions, and API access. Keys can connect OpenAI, Claude, Gemini, Grok, or Replicate; Replicate enables bulk image, video, and music generation. Filling a formula down a column can turn one prompt into hundreds of output rows. Installation comes through Google Workspace Marketplace and opens inside an existing Sheet. The free BYOK tier uses your own provider key, gives unlimited SHEETAI calls and formula generation, and sends provider charges directly to you. Starter costs $12 a month and includes approximately 500 AI runs monthly. Pro costs $29 a month, while Pro Yearly costs $290 a year; both describe higher, soft-unlimited usage. Credit packs range from $29 a month to $299, paid once. Licenses follow a Google Account email. The company says it does not view or share customer data and saves only essential information.