Effective October 31, 2026.
This statement describes what happens to information when you use lemmatic.ai and authorities.lemmatic.ai. It is short because there is little to describe. Our Terms of Use are at lemmatic.ai/terms.
What we collect
We do not collect personal information from your visit. Our sites use no cookies, analytics, or tracking of our own, and there are no accounts. We do not know who visits. The one field on Lemmatic Authorities that you can type into, the box for a pass, is read by the page on your own computer and is not submitted anywhere. The only personal information we intend to receive is what you choose to send us by email (see Email, below) and what Stripe shows us about a purchase (see If you buy a pass, below).
Your files
Lemmatic Authorities converts your files inside your web browser, on your computer. The page is built not to send your files, or anything about them, to us or to anyone else. Converting a file stores nothing in your browser. The page stores one thing, and only if you buy a pass: the pass itself, as a line of text, which the page reads to know that downloading is unlocked. It is kept on your computer, it is never sent to us or to anyone else, and clearing your browser’s site data removes it. Nothing about the files you convert is stored at all. The page’s security policy, which your browser enforces, allows the page to fetch its own files from our server and nothing more, and we test these things in three browser engines before every release. We do not control your browser, your operating system, or any extension you have installed, and each may keep records of its own, such as a downloads list, a recent-files list, or a synced history. The bundle you download and your original export remain on your computer as files you keep.
What our hosting provider sees
Our sites are hosted by Cloudflare. Like any web host, Cloudflare receives the technical information that comes with every web request — your IP address, your browser type, and the address of the page you asked for — and may keep it in its logs under its own privacy policy, which is at cloudflare.com/privacypolicy. We do not ask Cloudflare for that information, and we do not use it to identify anyone.
If you buy a pass
Payment is handled by Stripe. You go to Stripe’s own checkout page, and Stripe receives what it needs to take a payment — your name, your email address, your billing address, your card or other payment details, and the technical information that comes with any web request — and holds it under its own privacy policy, at stripe.com/privacy. Stripe does not pass your card details to us. We can see, in Stripe’s dashboard, the record of your purchase: the email address you paid with, the billing address, the amount, the date, and the pass you bought. We do not keep a separate copy of any of that, and we do not use it for anything but answering you if you write to us and handling a refund if you ask for one.
After you pay, Stripe sends you to pass.lemmatic.ai, which is ours. It receives the identifier of your Stripe checkout and nothing else about you beyond the technical information that comes with any web request. It asks Stripe whether that checkout was paid, produces your pass, and sends you on to the page that shows it to you. It stores nothing and it writes no logs.
We hold no record of your pass and cannot look it up. The page that showed it to you is your copy of it.
If you write to hello@lemmatic.ai, your message and your address are received through our email providers, Cloudflare (which routes the message) and Google Workspace (which holds the mailbox), and are kept as ordinary correspondence. We may not reply, and we use messages for no other purpose.
Children
Our sites are not directed at children and we do not knowingly collect information from them.
Changes
If this changes, the current version will be at lemmatic.ai/privacy with its effective date.