Privacy

Last updated 3 November 2026

Who is responsible

Lampka is made by Lukasz Buczynski, a sole trader in the United Kingdom, who is the "controller" of the information described here. Lampka is registered with the UK Information Commissioner's Office, registration number ZC288461. Contact: support@lampka.app.

The Lampka app

• No data collection. Lampka doesn't send anything about you, your computer or your reading to me or anyone else. It needs no internet connection to work.
• New versions (optional). On the third day you use Lampka, it asks whether it may tell you about new versions. If you say yes, or turn it on later in Options, it asks lampka.app about once a day whether a newer version is out (if it can't get through, it tries again an hour later). That request is for one small file and carries nothing about you, your computer or your reading; Lampka compares the answer with its own version on your computer. Like any visit to this website, Cloudflare sees your IP address to send the answer back. I don't keep a record of these requests. All I can see is how many there were each day. Help > Check for a new version does the same check once, whenever you choose.
• Your documents and notes stay on your computer: your library, reading positions, highlights, notes and settings are kept in Lampka's own folder there.
• Sync (optional). If you turn on sync, Lampka copies your reading positions, highlights, notes and settings (never the PDFs themselves) into a folder you choose inside your own cloud storage (such as OneDrive or Dropbox). Your cloud provider stores them under its own terms. I never receive them.
• Feedback. Send feedback opens your own email app with a message you can read and change before sending. Nothing is sent unless you send it. If Lampka ever crashes, the details are saved on your computer; they reach me only if you choose to attach them.
• Activity log. Lampka keeps a short activity log on your computer, so a crash report can say what happened just before. It records:
  • what Lampka was doing, such as "Print window opened" or "Opened a document (312 pages)"
  • which buttons, menus and settings you used, such as "Clicked Send by email"
  It never records file or folder names, licence keys, what you type, or what's in your documents. Its last few lines go into a report only when you send one, and you see them first. The log stays small (about 200 KB, plus one older copy) in Lampka's settings folder. Send feedback > Show log file shows where it is, and you can delete it at any time. Uninstalling Lampka leaves it in place, like your settings.
• The trial. The date your 14-day trial started is kept in Lampka's settings and in a few small copies elsewhere on your computer (including the Windows registry), so that reinstalling or resetting Lampka doesn't restart it. It never leaves your computer.
• Licence keys are checked on your computer, without going online. A key contains the name you gave when buying.

This website

• Hosting. The site is hosted by Cloudflare. Like any web host, Cloudflare processes your IP address and basic request details to deliver pages and protect the site from attacks.
• Cookies and analytics. The site uses neither, and it doesn't load fonts or scripts from other services.
• Downloads come from GitHub, which sees your IP address when you download, under GitHub's privacy statement.

The email list

If you leave your email address, it's stored by Kit (ConvertKit), the service that sends the emails. I use it to send occasional emails about Lampka: news, new features and offers, including when the Mac version is ready. Kit sends a confirmation email first, and every email has a one-click unsubscribe link. The legal basis is your consent, which you can withdraw at any time; when you unsubscribe or ask, your address is deleted.

If you ask for the download link on your phone, Kit sends you one email with it. You join the news list only if you click to confirm in that email; otherwise you get nothing more, and you can ask me to delete your address at any time.

Buying Lampka Pro

Payments are handled by Stripe, through its Managed Payments service, the reseller and merchant of record. They collect your payment details under their own privacy policy; I never see your card. From each order I receive your name, email address, country and what you bought. I use them to:

• send your licence key, and resend it if needed;
• help you if you write to me;
• keep the business records UK tax law requires (normally for six years).

The legal basis is the contract between us and those legal obligations.

The founders list

If you buy a founder's licence, I'll ask whether you'd like to be thanked by name on this website's founders list. Only if you say yes, your first name and the first letter of your last name (for example "Johnny B.") appear there, and nothing else about you. You can ask me to remove it at any time by emailing support@lampka.app, and I'll do it promptly. The legal basis is your consent.

Discount requests

If you ask for the student or disability-support discount, you send me proof of eligibility (for example a student card or a letter from a support service). I use it only to check that you qualify, then delete it once I've sent your code; I keep only a note that a discount code was issued to your email address, for my business records. Please don't send medical details: a letter confirming that you are registered for support is enough. The legal basis is the contract between us, and your consent when you choose to send it.

When you email me

I keep your messages, and anything you attach, for as long as it takes to help you, and then for a reasonable time in case the problem comes back. If you send a PDF so I can reproduce a problem, I use it only for that and delete it afterwards. Just ask if you'd like a message deleted sooner.

Who else sees it

Only the services named above, and only to do their part: Cloudflare (website and new-version checks), GitHub (downloads), Kit (emails), Stripe (purchases), and my email provider. I never sell or rent your information. Some of these companies process data outside the UK; they do so under the safeguards UK data protection law requires.

Your rights

Under UK data protection law you can ask for a copy of the information I hold about you, ask me to correct or delete it, object to how it's used, or withdraw your consent. Write to support@lampka.app and I'll reply within a month. If you're unhappy with my answer, you can complain to the Information Commissioner's Office at ico.org.uk.

Changes

If this policy changes, the date at the top changes too, and anything significant will be mentioned on the home page. The terms cover using and buying Lampka.