Privacy, without the fine print maze.
Updated: 14 October 2026. SellerPilot Margin Lab is a free browser-based calculator operated independently of TikTok.
What the calculator collects
We do not collect, transmit, or store the product prices, fees or quantities you type into the calculator. Calculations, copy-to-clipboard and CSV export run on your device. There is no user account or first-party cookie. We collect only aggregate usage-event counts (including optional positive/negative feedback) (page loads, completed calculations, and clicks to related sites), without visitor IDs, raw file contents, SKU data or entered numbers. Referrals are grouped into broad channels (search, internal links, tagged campaigns or other) without transmitting URLs or identifying visitors. These aggregate counts are stored in Cloudflare D1 to evaluate whether the tools are useful; they are not unique-visitor figures.
Hosting and technical data
The website is hosted on Cloudflare Pages. The hosting and network provider may process technical request information such as IP address, browser information, request timestamps and security events to deliver and protect the service under its own policies. We do not control that processing.
Links to other services
SellerPilot Global is a separate website with separate terms and privacy handling. When you choose to visit it, its own service policies apply. Referral parameters may identify that the visit originated from Margin Lab.
Your controls
You can close the page to end a calculation. Exported CSV files are saved only where your browser saves them. Do not enter personal information into numeric fields.
Questions
For questions about this website or its privacy practices, email trendshafa@gmail.com.