Last updated: June 7, 2026
PAE Bird is a math productivity app available as a macOS application, a Microsoft Excel® add-in, and a Google Sheets™ add-on. This policy describes how PAE Bird handles your data across all three products.
PAE Bird collects no personal data of any kind — no names, email addresses, account information, or device identifiers are collected, stored, or shared by any PAE Bird product.
The PAE Bird Excel® add-in loads its math engine (a WebAssembly file) from GitHub Pages (salmon-benedict.github.io) when the add-in is first opened. This is a standard web request to download app code; no user data or spreadsheet content is transmitted. All calculations run locally inside Excel after the engine is loaded.
The PAE Bird Google Sheets™ add-on works differently from the macOS and Excel® versions. When you use a PAE Bird formula (such as =PAE_SOLVE("x^2 - 5x + 6 = 0")), the math expression you type as the formula argument is sent to a PAE Bird API server hosted on Railway (railway.app) for processing. The result is returned to your spreadsheet.
The macOS app reads and writes CSV files only when you explicitly load or save them using the app's file dialogs. These files remain on your device under your control. The Excel add-in writes results directly into your spreadsheet; no file data leaves your device.
The optional feedback form opens Google Forms in your browser. Any information you choose to submit is governed by Google's Privacy Policy. Submitting feedback is entirely voluntary.
Questions about this policy: s.j.breier@gmail.com
Google Sheets™ and Google Workspace™ are trademarks of Google LLC. Microsoft Excel® is a registered trademark of Microsoft Corporation. Mac App Store® is a trademark of Apple Inc. PAE Bird is not affiliated with or endorsed by Google LLC, Microsoft Corporation, or Apple Inc.