Last updated: July 24, 2026
This policy covers the Seller Toolkit web application at toolkit.leonvartanian.com and the Seller Toolkit browser extension, both operated by Vartanian Capital.
On an Amazon product page, the extension reads the product's ASIN and listed price from the page you are viewing and sends them to our servers to return estimated fees, profit, and sales data. It runs only on amazon.com pages. It does not read your browsing history, other tabs, keystrokes, form entries, or any page outside of amazon.com.
The extension does not collect your name, email, payment details, or any personally identifiable information, and it does not sell or share data with third parties for advertising.
When you create an account we store your email address and the data you enter — suppliers, product costs, and notes. If you connect an Amazon seller account, we retrieve your orders, settlement and fee records, and catalog data through Amazon's Selling Partner API to show you your own profit and product information.
All traffic is encrypted in transit over HTTPS. Amazon access tokens are encrypted at rest before being stored. Each customer's data is isolated at the database level so no other customer can access it. You can disconnect your Amazon account at any time from Settings, which deletes the stored authorization.
We do not sell your data. It is processed only by the infrastructure providers that host the service — Vercel (application hosting) and Supabase (database) — acting solely on our behalf. Amazon data is never shared with advertisers, data brokers, or other sellers.
You can remove the extension at any time from your browser. You can request deletion of your account and associated data by emailing us.
Questions about this policy? Email leonvartanian@vartaniancapital.net.