Privacy policy

Last updated: November 9, 2026

Who we are. ZapLister ("we", "the app") is published by eselejuanito, Mexico. Contact: support@zaplister.com.

What the app is. A desktop program that helps you prepare and publish your own listings on Marketplace using your own account and your own Google Chrome. Most of your data never leaves your computer.

Data kept on your computer (not sent to us)

• Your listings (items, vehicles, properties), photo paths, collections, schedules and settings, in a local database.
• The accounts you add (the email or phone you type is stored encrypted on your computer) and the browser sessions of each account, kept by Chrome in a profile folder on your computer. The app never sees or stores the platform password.
• The app log file (zaplister.log), which keeps warnings and errors only.

You can remove all of this by uninstalling the app or deleting its data folder.

Data we receive

1. License validation (Google Firebase). To check your license we send your license key and a hashed identifier of your computer. We store the machine identifier, the license's status and dates, and the time it was last opened. When you verify an account, we store which Facebook profile (numeric profile id, display name and public username, when available) has been used with the license, to enforce the one-account-per-license rule of single-account licenses.
2. Usage statistics (our own analytics server). Events such as "app started", "listings published (counts)", "account verified" and error categories, with: the last 8 characters of the license key, app version, operating system and version, language, time zone, number of accounts, and the country/region/city derived from your IP address. We keep only a truncated IP address (last part removed). We do not send the content of your listings, titles, prices, photos, account emails, phones or passwords in these events.
3. Error reports (Bugsink / Sentry). When something fails, a technical report is sent: error message, app version, operating system, and, to understand what went wrong, it may include a screenshot or the text structure of the page where the error happened. Such a screenshot can show listing content visible on that page.
4. Problem reports you choose to send. If you press "send report", the app emails us (through Resend) the log file and diagnostic details so we can help you.
5. Our website and payments. Payments are processed by Lemon Squeezy (our merchant of record); we receive the buyer's email and order data from them. See their privacy policy.

Why we use it

To validate licenses, to keep the service working and fix errors, to understand how the app is used so we can improve it, and to give you support. We do not sell your data and we do not use it for advertising.

Sharing

With the service providers named above (Google Firebase, Resend, our own servers, Bugsink/Sentry, Lemon Squeezy), only as needed to run the service. We may disclose data if the law requires it.

Retention

License and identity records are kept while the license is valid and a reasonable time afterwards. Usage events and error reports are kept for as long as we need them to measure and improve the service, review errors and give support; they are not deleted automatically by date (of the error reports, the most recent are kept and the oldest are replaced when a limit is reached). You can ask us to delete them (see "Your choices").

Your choices

You can ask us to access or delete the data we hold about your license by writing to support@zaplister.com. Uninstalling the app removes the local data. The app needs to contact the license server to work.

Children

The app is not directed to children under 13 (or the minimum age in your country).

Changes

We will publish changes on this page and update the date above.

Not affiliated with Meta

ZapLister is independent and not affiliated with, sponsored or endorsed by Meta Platforms, Inc. Facebook and Marketplace are trademarks of their owners.