PRIVACY
Privacy Policy
Effective and last updated:
Your document files
Images and PDFs selected in LensUp are processed locally by your browser. LensUp does not upload those files to its servers for document processing. If you use a browser share or print action, the browser and operating system handle that action under their own controls.
Photo to Markdown Pro
The Photo to Markdown page recognizes text locally. If you choose Fix with Pro, the photo you selected is sent — on that click only, through LensUp's server — to Mathpix, Inc. (USA) for recognition, and the recognized text comes back to your browser. LensUp does not store the photo or the text; Mathpix processes the image under its own terms and privacy policy. Pro needs a sign-in by e-mail (a one-time link, no password): we keep your e-mail address, your credit balance and a log of runs (time, outcome, the vendor's confidence — never the image or the text). Payments are processed by Stripe; LensUp never sees your card number, only Stripe's confirmation and the amount.
Website analytics and cookies
LensUp uses Google Analytics to understand aggregate visits and improve the site. Google may receive technical visit information such as IP address, browser, device, referring page and interaction events. Site analytics start when you open a page and continue unless you reject them, so measurement is on by default. You can reject analytics at any time through Cookie settings. Rejecting clears the analytics cookies from this device and stops both cookie-based analytics and the product interaction events; a cookieless measurement signal for the page view is still sent. Advertising cookies are covered separately below.
Advertising
LensUp shows advertising supplied by Google AdSense. Ad revenue is what keeps these tools free and free of sign-up.
Third-party vendors, including Google, use cookies, web beacons, device identifiers and similar technologies to select, deliver, measure and report on those ads. Google’s use of advertising cookies enables Google and its partners to serve ads to you based on your visit to LensUp and to other sites on the internet. These vendors — not LensUp — decide what those technologies collect, and their processing is governed by their own policies.
A current list of the vendors Google may work with, and a description of what Google collects through them, is published in How Google uses information from sites or apps that use our services.
Your choices
- Use Cookie settings on this site at any time to accept or refuse advertising and analytics cookies. Refusing keeps ads on the page but stops personalised advertising and clears the advertising cookies this site set on your device.
- Turn off ad personalisation across Google products at My Ad Center.
- Opt out of many other vendors at aboutads.info/choices, optout.networkadvertising.org and youronlinechoices.eu.
What advertising never receives
The images and PDFs you open in LensUp are processed by your browser and are never uploaded, so they cannot be passed to an advertising vendor. LensUp does not send an email address, phone number, name or any other directly identifying information in an ad request, and does not build or use audience lists based on health, religion, sexual orientation or other sensitive categories.
Visitors in the EEA, the UK and Switzerland
If you are in the European Economic Area, the United Kingdom or Switzerland, advertising and analytics cookies are set only after you give consent through the consent banner, and you can withdraw or change that consent at any time through Cookie settings. Until you choose, LensUp serves only non-personalised ads and sets no advertising cookies.
Children
LensUp is a general-audience tool and is not directed to children under 13, or the equivalent minimum age where you live. We do not knowingly collect personal information from children, and we do not use interest-based advertising on content directed to children.
Local browser storage
LensUp may store settings, consent choices and recoverable work state in your browser. This information stays on that device unless your browser synchronizes it. You can remove it with your browser’s site-data controls.
Messages you send
If you contact us, we receive the address and content you provide so we can respond and investigate. Please do not send identity documents or other sensitive files.
The Feedback form in the footer works the same way, by email. A submission contains the message you typed, the category you picked, and — stated in the form itself — the address of the page you were on, the interface language, and your browser version. An email address is optional and is used only to reply to you. The submission is delivered to our inbox through Resend, a transactional email provider acting as our processor; it is not stored in any database of ours, and using the form sets no cookies. If you prefer, write to us directly instead.
Infrastructure
The site is hosted on Cloudflare Pages and served through Cloudflare’s network. As the hosting and network provider, Cloudflare processes connection data such as your IP address and request headers in order to deliver pages and to protect the site from abuse. That processing is technically necessary to serve a website at all and happens for every visitor, including one who refuses optional cookies. Cloudflare acts as our processor and does not receive the files you open in LensUp, because those never leave your browser.
How long data is kept
Pro accounts (e-mail address, credit ledger, run log) are kept while the account has credits or was used in the last 24 months; sign-in links expire after 15 minutes and are deleted after use. Write to the contact address below to have an account deleted; refunds follow Stripe's process.
- Your documents: not retained by us at all. They are processed in your browser and are never uploaded — except a photo you explicitly send with Fix with Pro, which passes through our server to Mathpix and is not stored by us — so there is no copy on our side with a retention period.
- Analytics: Google Analytics retains event-level data for the period configured in the property, after which it is deleted or aggregated by Google. Cookie lifetimes are set by Google Analytics and by your own choice; refusing analytics clears them from the device.
- Advertising: retention of advertising identifiers is controlled by Google and its vendors under their own policies, not by us.
- Messages you send us: kept as long as needed to answer and to keep a record of a reported defect or correction, then deleted.
- Choices stored in your browser: your consent decision and saved settings stay on the device until you clear site data or change them.
Your rights
Depending on where you live, you may have the right to access the personal data we hold about you, to have it corrected or deleted, to object to or restrict processing, to withdraw a consent you gave, to receive your data in a portable form, and to opt out of the sale or sharing of personal information or of targeted advertising. To exercise any of these, email write@lensup.ai and say which right you are exercising. We do not charge for this and we will not treat you differently for asking.
Two practical notes. First, because documents on the free path are never uploaded, an access or deletion request cannot return a scan — there is nothing to return; a Pro account (e-mail address, credit ledger, run log) can be deleted on request. Second, the fastest route for advertising and analytics is usually direct: Cookie settings in the footer of any page changes your choice immediately, and the vendor opt-out links above reach further than we can on your behalf.
If you are in the EEA or the UK and think we have handled your data improperly, you may also complain to your national data protection authority.
At a glance
- Never collected: the images and PDFs you process and their contents (except a photo you explicitly send with Fix with Pro, which is not stored), your name, your address, your date of birth, any identity document number.
- No account for the tools: the free tools have no sign-up, no password and no user profile. Photo to Markdown Pro keeps an e-mail address, a credit balance and a run log, as described above.
- Collected with your consent, or until you refuse: analytics about page visits and tool interactions.
- Collected by third parties for advertising: cookies and identifiers as described above, subject to your consent where the law requires it.
- Always processed: the connection data any web server needs to answer a request.
Changes to this policy
When this policy changes materially we update the date at the top of the page. Where a change requires your consent under applicable law, we will ask for it before the change takes effect rather than relying on the updated date alone.
Contact
For a privacy question or request, email write@lensup.ai.