Privacy
Updated October 10, 2026
New on October 9, 2026: if you answer a survey we run for your dental lab, we also anonymize your answers and add them to totals across every lab's survey, which we may publish. And a survey kit we make for a lab now keeps the lab owner's email. See What we collect, and why.
New on October 9, 2026: Slack, where our team writes to each other, now gets a short line when you open one of our demo links or answer a lab's survey. See Who else touches it.
New on October 6, 2026: this page now covers the surveys we run for dental labs. If your lab sent you one, see What we collect, and why.
This page says what we collect, where it comes from, why we have it, how long we keep it, and how to have it removed. It covers four places: this website, the newsletter, the invitation-only product demo, and the surveys we run for dental labs. The whole practice fits on this one page.
No patient information is in Lecron today. If you are reviewing us for a laboratory, start at Patient information and HIPAA.
The short version
- We collect your email address when you hand it to us, plus the answers you give when you book a call.
- This site counts page views and clicks on the handful of buttons that lead to the tour or a call. The service that counts them is PostHog.
- The demo records how it is used, including a replay of the session. It is tied to the email you signed in with, or, if we sent you a temporary link, to that link and to the name and email you give on it. We send a six-digit code to that email and open the demo once you type it back, so we know the address is yours.
- If your dental lab sends you a survey we run for it, we keep your answers, and your name and email if you give them. We send them to your lab, add them anonymized to totals across all labs, and delete your answers 180 days after the survey closes.
- There are no advertising trackers anywhere: not on this site, not in the demo.
- We do not sell your information, rent it, or share it for advertising. We have never done any of the three.
- One email to [email protected] deletes what we hold about you.
What we collect, and why
This is the whole list. There is no hidden field, no form that says one thing and sends another, and we buy no information about you from anybody.
| What | Where it comes from | Why we have it | How long we keep it |
|---|---|---|---|
| Your email address | The newsletter box, a worksheet or checklist download, a survey kit we make for your lab, or a message you send us | To send you the newsletter you asked for, hand over the file you asked for, and answer you. For a lab owner with a survey kit: to send the test copy you ask for, tell you on day 4 that it is time for your reminder, and tell you when your report is ready | Until you ask us to delete it. An unsubscribe marks the row unsubscribed and keeps the address, so we cannot mail you again by mistake. Ask us to delete it and the row goes too. A survey kit's address is deleted with the survey's answers, 180 days after it closes. |
| Which page you signed up on | The form itself, as a label like "blog article" or "subscribe page" | To know which pages are worth writing more of | With the signup, and it goes with it |
| Your name, phone number, role, and your lab's monthly unit volume | The booking questions on the call page, which is a Cal.com scheduler | To hold the call and come to it prepared | In the Cal.com booking and in our own notes on the conversation, until you ask us to delete them |
| Page views and button clicks | This website, through PostHog | To see which pages and which buttons lead to a call, so the site gets better at answering you | In our PostHog account. No replay and no advertising identifier on this site. |
| Your name, an email address, and a phone number if you choose to give one, on a demo link | One of us typing a name and one way to reach you when we make the link. If someone passed the demo on to you, it was that person, typing your name and email when they shared it: we make your link for that address, we send nothing to it until you ask for the code below yourself, and the short form arrives with it filled in so you can change it. Then you, on the short form the link shows before the demo opens: your name, an email address, and a phone number if you choose to give one. We send a six-digit code to that email address and the demo opens once you type it back | To label the link so we know whose it was, to know who actually opened it when a link is passed on, to know the email address is really yours, and to reach you about what you saw | Until you ask us to delete them. A link closes after two weeks, or stays open until we close it if we made it with no end date for someone we work with, but closing the link does not remove your details: we keep them so we can follow up about the demo. Ask us and they are deleted. |
| How the demo is used: the screens you visit, the actions you take, and a replay of the session | The invitation-only demo, through PostHog. Tied to the email you signed in with, or to the temporary link we sent you, and to the name and email you gave on it. For a temporary link we also keep a short record ourselves: when you visited, how long you looked at the design, and whether on a phone, a tablet or a computer | To see where the product helps and where it fights the person using it | While the demo program runs. Yours is deleted whenever you ask. |
| What you type into the demo | Your own browser. Notes, comments and test cases stay in its local storage and are not sent to us. | So the demo behaves like a real product while you try it | Until you clear your browser's site data. The demo resets itself each day. |
| Your answers to a survey your dental lab sends you, and your name and email if you give them | A short survey your lab emails you. We run it for the lab on our own website, and your answers come to us | To count the answers and send your lab a summary of what its dentists want, with the answers attached. We also anonymize your answers and add them to totals across every lab's survey, which we may publish. | Your answers: 180 days after your lab's survey closes, then deleted. Ask us and yours are deleted sooner. The anonymized totals we keep. The copy your lab receives is the lab's own. |
| Your email and what you wrote in it | Mail you send to our lecronlab.com addresses | To answer you, and to remember what we agreed | In our mailbox, the way any business keeps its correspondence |
The same list in the law's words
California's privacy law asks for this list in a fixed vocabulary, so here it is again in those terms. We collect identifiers (your name, email address, phone number, and the identifier PostHog stores in your browser), professional or employment-related information (your role and your lab's monthly unit volume, when you tell us, and your answers about how your office works with its lab, when you answer a lab's survey), internet or other electronic network activity information (the pages you visit here and the screens you visit in the demo), and electronic or visual information (the session replay inside the demo).
Two sources only: you, when you fill in a form or write to us, and your own use of this site and the demo. We collect no sensitive personal information, and we use and disclose nothing for a purpose beyond the ones named in the table above. We draw no inferences from any of it to build a profile of you. In the past 12 months, and in every month before it, we have sold nothing, shared nothing for cross-context behavioral advertising (the legal name for following you around other sites), and disclosed nothing for a business purpose beyond the service providers named below and, for a survey, the lab that sent it to you.
What we do not do
- We do not sell or rent your contact information.
- We do not share it for advertising, and we run no advertising trackers anywhere.
- We do not buy information about you, and we do not add to what you gave us from other databases.
- We do not contact you about anything other than Lecron and your early access.
- We do not knowingly collect anything from a person under 16.
Who else touches it
A short list of services handles your information on our behalf: the ones that host this site and the demo, count page views, deliver our email, schedule your call, collect the surveys we run for labs, hold our notes on the labs we talk to, and carry our team's messages. Each is named, with what it handles and where it runs, on the sub-processors page. They act on our instructions and for no purpose of their own. The one other party that receives your information is your own dental lab: if it sent you a survey we run for it, it gets your answers. We disclose your information to nobody else.
When you book a call you are using Cal.com's own service, so they handle your booking under their privacy terms as well as ours. If you would rather not use it, email us and we will set a time by hand.
Patient information and HIPAA
Lecron is software for dental laboratories, so a reviewer asks this first. No patient information is in Lecron today, and none should be.
A laboratory that receives patient information from a practice is a business associate under HIPAA. Software that holds that information for the laboratory is one too: the rule covers a subcontractor that creates, receives, maintains, or transmits protected health information on a business associate's behalf (45 CFR 160.103). That means a signed business associate agreement between your lab and us before a single real case goes in. We do not have those agreements yet, and we will not tell you Lecron is covered before we do.
So do not put a real patient's name, image, scan, or chart number into the demo. Every patient, dentist, and laboratory in it is invented, and it is not built to hold the real thing. The security page says where that work stands, in plain words, including the parts that are not finished.
How long we keep things
The table above gives a period for each item. Where it does not give a fixed date, the rule is the same one: we keep something while it is still doing the job it was collected for, and delete it when it is not. Nothing is kept because it might be useful one day.
Your rights, wherever you live
Several states now give people rights over information about them. Most of those laws set a size threshold that a company our size is under. We answer requests as though they applied, because the answer should not depend on which state you are in. You can ask us to:
- tell you what we hold about you, and where it came from
- send you a copy of it
- correct anything that is wrong
- delete it
- stop using it
There is nothing to opt out of on the sale or sharing of your information, because we do neither, and nothing to limit on sensitive information, because we collect none.
To ask, email [email protected] from the address you want us to look up. We answer within 30 days, and if a request needs longer we tell you that and why.
To check it is you, we reply to the address on file. For anything beyond a deletion we may ask one question only the right person could answer. We never ask you to send identity documents. If someone is asking on your behalf, have them send us your written permission, and we will confirm with you before we act on it.
If we say no, reply with the word appeal in the subject line. A founder reads it and answers with the reason in writing. Asking costs nothing and changes nothing about how we treat you or your lab.
Cookies, and what sits in your browser
This website sets no cookies. What it does leave is one PostHog identifier in your browser's local storage, which is how a second visit counts as the same visit rather than a new person. Clearing site data removes it.
The demo needs two things in your browser. One is the same PostHog identifier. The other is whichever key let you in: the Cloudflare Access cookie if you signed in, or, if we sent you a temporary link, a cookie naming that link, which holds no email address and stops working when the link closes. The booking page loads the Cal.com scheduler from cal.com, which stores what it needs to take a booking.
Do Not Track and Global Privacy Control signals have nothing to switch off here, because we do not sell or share your information. If you would rather not be counted on this site, block the analytics domain in your browser. In the demo the recording is the point of the visit, so if you would rather not be recorded, tell us: we will walk you through the product on a call instead, and delete any record already made.
The email we send
Three kinds, all of them asked for. The newsletter, Insights for Growing Dental Labs, goes out when there is an issue worth sending. Every issue carries a one-click unsubscribe and our postal address, and an unsubscribe takes effect at once. The second kind is a reply to something you sent us. The third is the six-digit code we send when you give your email on a temporary demo link: one short message with the code, no tracking, and no link but the two in its footer, to this page and to our home page. The code stops working after ten minutes. We send nothing else, and we put no advertising in any of them.
Where the data sits
This site and the demo are served by Cloudflare. Every connection to either is encrypted in transit, and the services that hold anything for us encrypt it at rest. Production access is held by the two founders and nobody else. The security page has the detail, including how to report a weakness you find: [email protected].
People under 16
Lecron is sold to dental laboratories and dental practices, so nothing here is aimed at children. We do not knowingly collect information from anyone under 16. We have never sold or shared anyone's information, a minor's included. If you think a child gave us something, write to us and we will delete it.
If you are outside the United States
Lecron serves dental laboratories in the United States, and the services above run there. If you subscribed from elsewhere, your email address sits on a US server. The rights above are yours on the same terms.
When this page changes
The date at the top moves whenever anything here changes, and what changed is listed below. If a change matters to you, a new service, a new kind of information, or a new purpose, we put a note at the top of this page for 30 days and say it in the next newsletter issue.
- October 9, 2026: answers to the surveys we run for dental labs are now also anonymized and added to totals across every lab's survey, which we keep and may publish. Your own answers are still deleted 180 days after your lab's survey closes. A survey kit we make for a lab now keeps the lab owner's email, to send the owner a test copy on request, a day 4 reminder and word that the report is ready; it is deleted with the survey's answers.
- October 9, 2026: our team's messages in Slack now include a feed of what happens on our demo links and lab surveys: the name we gave your link and when you opened it, looked at the design or answered. Never what you typed into a form, and never your survey answers. Slack was added to the sub-processors page.
- October 9, 2026: for a temporary demo link, we now keep a short record of each visit ourselves, beside the one PostHog keeps: when it was, how long the design was looked at, and on what kind of screen.
- October 8, 2026: the surveys we run for dental labs moved from Google Forms to our own website. Your answers are kept by Cloudflare, which already runs this site, and go to your lab as before. Google no longer receives them.
- October 6, 2026: the surveys we run for dental labs were added. The page now says what we keep from a dentist who answers one, that the answers go to the lab that sent it, that Google Forms holds them, and that they are deleted 180 days after the survey closes.
- September 28, 2026: the company's legal name, Lecron, Inc., was added after incorporation, and the mailing address was removed. Requests now go by email.
- September 18, 2026: rewritten to match what the site actually does. The retired waitlist form came out; the newsletter and download forms and the Cal.com booking went in; PostHog is named as the service that counts page views here; retention, your rights, and the browser storage list were added; and the HIPAA answer now sits here as well as on the security page.
- September 17, 2026: moved to /legal/, beside the security and sub-processors pages.
- September 10, 2026: the page began describing the page and click counts on the public site.
- September 9, 2026: first published, when the demo began recording how it is used.
Who we are, and how to reach us
Lecron, Inc., a Delaware corporation, runs lecronlab.com and the Lecron demo. By email: [email protected] for anything on this page, and [email protected] to report a weakness. A founder reads both.
Questions about any of this: [email protected].