Sigma Foundry LLC ("we," "us") · Effective date: September 15, 2026
This policy explains what personal data we collect through sigmafoundry.io and its subdomains (the "Services"), why we collect it, and the choices you have. We collect the minimum we need to run the Services, and we do not sell personal data.
To provide and secure the Services; to verify that an account is entitled to the app it is opening; to process subscriptions, payments, refunds, and renewals; to send service and billing notices; to answer support requests; to understand which tools and channels work; and to meet legal, tax, and accounting obligations.
Performance of our contract with you (providing the Services), our legitimate interests (security, preventing abuse, understanding usage), compliance with legal obligations, and your consent where we ask for it (for example, marketing email, which you can withdraw at any time).
Only with providers that help us run the business, under their data-processing terms:
We may also disclose data if required by law or to protect our rights, and to a successor if the business is sold.
We set a session cookie so you stay signed in across our subdomains, and a 90-day attribution cookie recording the source of your first visit. Free tools may use your browser's local storage to remember your work on your own device. We do not use advertising cookies or third-party analytics trackers.
We keep account and billing records while your account is active and for as long as tax and accounting law requires afterward (typically seven years for transaction records). Sign-in tokens expire within minutes; sessions expire after 30 days of inactivity. You can ask us to delete your account at any time; we will remove personal data that we are not legally required to keep.
Depending on where you live you may have the right to access, correct, delete, or export your data, to restrict or object to processing, and to withdraw consent. California residents have the right to know what we collect and to request deletion; we do not sell or share personal information for cross-context advertising. To exercise any right, email [support@sigmafoundry.io](mailto:support@sigmafoundry.io) from your account address.
Our servers are in the United States. If you use the Services from elsewhere, your data is transferred to and processed in the US under appropriate safeguards where required.
The Services run over HTTPS only; sign-in and session tokens are stored hashed; servers are firewalled and patched automatically; payment data is handled by Stripe. No system is perfectly secure, and we will notify you as required if a breach affects your data.
The Services are not directed to children under 13 and we do not knowingly collect their data.
We may update this policy. If a change is material we will email account holders or post a notice on the account page before it takes effect.
Sigma Foundry LLC, Oakland, New Jersey, USA — [support@sigmafoundry.io](mailto:support@sigmafoundry.io)