Effective date: March 22, 2026
Reseller Profit Calculator ("the Extension") is a Chrome browser extension that helps resellers calculate profit and fees on Poshmark, eBay, and Mercari listings.
Data stored locally on your device
The Extension saves the cost-of-goods ("I paid") values you enter per listing. This data is stored exclusively in your browser using chrome.storage.local and never leaves your device. We have no access to it.
Anonymous usage analytics
The Extension collects anonymous, non-personal usage events (for example: "calculator panel was shown", "cost field was filled in"). These events are sent to Google Analytics 4 and contain no personally identifiable information — no name, email, IP address, or browsing history.
This data is used solely to understand how the Extension is used and to improve it.
We use Google Analytics 4 for anonymous usage analytics. Google's privacy policy is available at policies.google.com/privacy.
Local storage data remains on your device until you uninstall the Extension or clear it manually. Anonymous analytics data is retained per Google Analytics default settings (up to 14 months).
You can remove all locally stored data at any time by uninstalling the Extension. To opt out of analytics, you may use the Google Analytics Opt-out Browser Add-on.