Privacy Policy
Last updated: October 30, 2026
Mementa Notebook is built on a simple promise: private by default, local by design. Your notebooks, drawings, stickers, and reading are yours. This policy explains the little data we do handle, and the data we deliberately never touch.
Who we are
Mementa ("we," "us") makes the Mementa Notebook app for Windows and operates the website at mementa.page. You can reach us any time at info@mementa.page.
The app does not collect your content
Everything you make and read in Mementa stays on your device:
- Your notebooks, pages, drawings, text, and layers
- Your Sticker Book, templates, and imported images
- PDFs, comics, and EPUB books you add to your shelf
- Bookmarks, highlights, reading position, and app settings
All of it is saved in one folder on your PC, called Mementa, inside your Windows user folder (C:\Users\your name\Mementa). In the app, Settings shows where your notebooks are under Notebook folder, and the Open button takes you there. If you move your notebooks to another folder from Settings, they live there instead. Updating, reinstalling or even uninstalling Mementa never touches this folder.
The app does not require an account, does not upload your notebooks to us, and contains no advertising or third-party tracking. There is no analytics or usage telemetry: we do not measure what you make, what you open, or how you use the app. The only time the app sends anything about itself back to us is if it crashes and you agree to send the report. See Crash reports below. That report never contains your notebooks or your content.
Information we do collect
If you order a printed book
Mementa can turn your notebook into a physical, printed book. When you place a print order, you enter your name and shipping address in the app, and you enter your payment details directly into a secure checkout provided by either Stripe or PayPal, whichever you choose. Your payment is processed by that provider; Mementa never receives or stores your payment card details. To produce and ship your book, your name, shipping address, and order contents are sent to our print-on-demand provider, Lulu. We only handle the order information necessary to fulfill and support your purchase.
To get your book to Lulu, the app uploads the interior and cover as PDF files to Cloudflare's R2 storage, encrypted at rest, under a random file name that can't be guessed. Nothing in that storage is publicly listable or browsable; the only way to reach a file is a short‑lived link generated for that one order. Our own systems can access these files, since that's how we hand your book off to Lulu, but the storage automatically and permanently deletes every file seven days after upload, whether or not the order has finished printing. We don't keep a copy beyond that window.
While you are typing a US shipping address, the app checks your ZIP code against Zippopotam.us, a free public postal-code lookup, so it can catch a mistyped city or state before you pay. Only the five digit ZIP code is sent. Never your name, street address, or anything else. The check is skipped if the service is unavailable.
To show book prices in your own currency, the app downloads the day's exchange rates from Frankfurter, a free public service that republishes the European Central Bank's reference rates. That request carries nothing about you: it is the same request for everyone, and prices simply stay in US dollars if the service is unavailable.
If you email yourself the download link
The website offers to email you the Microsoft Store link if you're not ready to install right away. If you use this, your email address is sent to our email provider, Brevo, to deliver that one message, and is not otherwise stored. If you separately check the box to receive occasional feature-update emails (unchecked by default), we keep your address for that purpose only, and every such email includes a one-click unsubscribe link. We never sell or share your address, and we only email you what you opted in to receive. To request deletion of an address you subscribed with, contact info@mementa.page.
Crash reports
If Mementa closes because of an unexpected error, it saves a diagnostic report on your device. The next time you open the app, it asks you once whether to send crash reports, and remembers your answer. If you decline, the saved reports are deleted and nothing is ever uploaded. You are shown a summary of the report before you decide.
If you agree, the report we receive is anonymous and technical. It contains the error type and message, the technical stack trace, a short trail of recent app actions (such as "startup" or "edit mode → book mode"), the app version, whether you installed from our website or the Microsoft Store, your Windows version, your processor architecture, and a random identifier generated on your install that lets us tell one machine's reports apart. That identifier is not linked to your name or your identity. Crash reports never include your notebooks, drawings, text, or any file you have made or opened.
Rarely, Mementa may close so suddenly that it has no chance to write a report itself, for example when Windows ends it after a fault inside a program file. Windows keeps its own record of that crash, and the report then also lists the names of the program files (DLLs) that were loaded into Mementa at that moment. That list covers Mementa's own files, the Windows files it uses, and any file that other software on your PC added to Mementa, such as security software, screen recorders, or keyboard and language tools. It holds file names only, never the folders they are in, so it never includes your Windows user name. For a crash like this, knowing which files were loaded is often the only way to find the cause.
The consent dialog also lets you optionally add your email address and a note about what happened, so we can follow up. Both are entirely up to you: leave them blank and the report stays anonymous. If you do give an email address, the app remembers it and attaches it to future crash reports so we can reach you; you can clear it at any time. Our server also records the country your report was sent from, resolved from your internet connection.
Crash reports are stored on our own backend (hosted by Netlify) and used only to find and fix bugs. So that we notice a problem quickly, our backend also emails a copy of the report to our own support address, using our email provider Brevo to deliver it. The report goes only to us; it is never sold or shared with anyone else.
Buying Mementa on the Microsoft Store
Mementa is sold through the Microsoft Store. Microsoft processes your purchase and keeps your license with your Microsoft account, under Microsoft's privacy statement. We never receive your payment details. The app does not check your license with our servers, and buying it sends nothing about you to us.
Installing from the Microsoft Store doesn't change anything above: the app itself still collects none of your content. The Microsoft Store may collect its own install and usage information under Microsoft's privacy statement, which is outside our control.
Cookies and tracking
Our website does not use advertising or third-party tracking cookies. Our host may set essential cookies required to serve the site securely.
Children's privacy
Mementa is intended for a general audience and is not directed to children under 13. We do not knowingly collect personal information from children.
Your choices
Because your work lives on your device, you stay in control of it: delete notebooks or clear your library at any time. Uninstalling Mementa leaves your notebooks where they are, so installing it again picks them right back up. To remove everything Mementa saved, uninstall the app and then delete the Mementa folder in your Windows user folder. To request deletion of an email address you gave us with a crash report, contact info@mementa.page.
Changes to this policy
We may update this policy as Mementa grows. When we make a meaningful change, we will revise the "Last updated" date above and, where appropriate, note it on this page.
Contact us
Questions about privacy? Email info@mementa.page or call 914-440-0550.