Last Updated: October 5, 2026
Sim Companies Helper ("the Extension") is a client-side browser extension designed to enhance the gameplay experience of Sim Companies. We respect your privacy and are committed to protecting it. This policy explains our data practices.
We do not collect, store, transmit, or sell any user data.
The Extension runs entirely locally on your device. It interacts directly with the
simcompanies.com displayed in your browser to calculate profits and organize data. Most
calculation data is kept in temporary browser memory and is discarded when you close the tab or
reload the page. Some user preferences and saved alerts are stored locally in your browser using
extension storage so features like price alerts, discounts, and message settings persist across
sessions. This data is never transmitted to us.
Saved contract rules and the on/off state of the Accessibility switch are stored with Chrome sync
storage (chrome.storage.sync), so they follow you to other browsers where you are signed in
to Chrome with the same Google account. Chrome handles this sync under Google's privacy policy; we have
no access to it. If Chrome sync is off, they stay on this device only. Building nicknames and map label
colors are stored locally on this device.
The "What's New" release notes are bundled inside the Extension; nothing is downloaded to show them.
The specific permissions we request in the Chrome Web Store are strictly used to:
https://www.simcompanies.com/* to display helper
widgets.
The Extension does not have access to any other websites.
If we ever introduce features that require data collection (e.g., optional cloud syncing), we will update this policy and request your explicit consent.
If you have questions about this privacy policy, you can reach out via our GitHub Repository.