Last updated: July 1, 2026
asint.io ("asint.io," "we," "us," or "our") provides on-demand Amazon marketplace intelligence, including Buy Box tracking, seller investigation, product detail page health scoring, price history, and unauthorized seller detection (the "Service"). This Privacy Policy explains what information we collect, how we use it, and the choices you have.
Account information. When you sign in with Google or Microsoft, we receive your name, email address, and profile picture from that provider. We do not receive or store your password.
Usage data. We store the ASINs you track, the segments or labels you create, and your subscription tier.
Payment information. If you subscribe to a paid plan, payment is processed by a third-party payment processor. We do not store your full card number; we retain only a customer reference ID needed to manage your subscription.
Third-party marketplace data. To provide the Service, we retrieve and cache publicly available Amazon marketplace data through Keepa's API, including product listings, pricing, and seller account information (such as seller name, business name, and publicly listed contact details) for Amazon sellers you look up. This information originates from Amazon's public marketplace and Keepa, not from the sellers directly, and is not information we collect about our own users.
We use a single essential session cookie to keep you signed in. We do not use third-party advertising or analytics cookies.
We retain account and usage data for as long as your account is active. Cached marketplace data is refreshed periodically and only the most recent snapshot is retained — we do not keep an indefinite history of every past data pull. You may request deletion of your account and associated data at any time by contacting us (see Section 8).
We do not sell your personal information. We share information only with the service providers necessary to operate asint.io, including:
These providers are contractually permitted to use your information only to provide services to us.
Depending on where you live, you may have the right to access, correct, or delete your personal information, or to object to certain processing. To exercise any of these rights, contact us atprivacy@asint.io.
The Service is not directed to individuals under 18, and we do not knowingly collect information from children.
Questions about this Privacy Policy can be directed toprivacy@asint.io.
We may update this Privacy Policy from time to time. We will post the updated version here with a new "Last updated" date.