Privacy

Short, because there isn't much to say.

Last updated 15 October 2026

The Lid Keeper app

Lid Keeper runs on your Mac or Windows PC. It contacts the internet in exactly four situations, all of which you start yourself: activating a licence, restoring an activation that has gone missing on the same computer, moving your licence to another computer, and choosing Check for Updates…. It never checks on its own — not on launch, not on waking, not on a timer, not when the network comes back. Keeping your laptop awake with the lid closed involves no network at all, and an activated computer keeps working with the internet off, permanently. There is no expiry and nothing to renew.

What an activation request sends us: your licence key, a one-way SHA-256 fingerprint of your computer's hardware identifier (on a Mac, its hardware UUID; on a Windows PC, the manufacturer's system UUID, or Windows' own machine ID where the manufacturer left none), the fingerprint format, and an identifier for that one operation. The raw hardware identifier never leaves your computer. A licence move also sends a random request secret; confirmation includes the challenge identifier and the verification code you typed. It does not send your name, your computer's name, your user account, your files, your battery or temperature readings, how long you have used the app, or anything about what you do with it.

A hashed hardware identifier tied to an email address is still information about you and your device. We do not call it anonymous. Cloudflare and Railway, which serve those requests, also process standard request metadata such as your IP address.

The app stores an activation record on your computer containing your licence key and the signed receipt we issued for it. That file is readable only by your user account. Session readings (temperature, fan speed, battery, duration) are shown to you and kept locally for diagnosis. Nothing about them is sent to us.

Lid Keeper never records audio. Its microphone handling only selects which existing input device is the system default while the lid is closed.

The website

lidkeeper.com is a static site served by Cloudflare. Cloudflare processes standard request data (such as your IP address and browser type) to serve the site and protect it from abuse, under Cloudflare's privacy policy.

Advertising measurement. If we pay to put Lid Keeper in front of you, we need to know whether it worked. When we are running ads, pages on this site load conversion tracking from Meta (Facebook and Instagram) and X. It sets cookies in your browser and tells those companies that someone visited a page, started a checkout, or bought. That is advertising and behavioural tracking. We are not going to call it anything else.

It is limited in three ways, and each one is decided before any of their code is fetched:

• Europe is asked first. If you are in the EU, the EEA, the UK or Switzerland, nothing loads until you say so. You get one small bar with Allow and Decline. We remember your answer in your own browser, and no answer counts as no — so ignoring it leaves you untracked. Decline, and nothing is ever set.
• Not if you opt out. If your browser sends a Global Privacy Control signal, none of it loads, wherever you are.
• Not when we are not advertising. With no campaign configured, the site loads nothing from either company.

When you buy, our own store also tells Meta directly that a sale happened, so that purchases made in browsers that block scripts are still counted. That message contains the order amount and a one-way SHA-256 hash of your email address. Your actual address is never sent, and we do not send Meta your licence key, your name, or anything about your computer.

None of this is in the Lid Keeper application. The app loads no third-party code, reports nothing about how you use it, and is completely unaffected by anything in this section.

Buying a licence

Payments are processed by Stripe. Stripe collects your payment details directly; we never see your full card number. Stripe shares with us your email address, the country of your payment method, the amount paid and a receipt reference.

We store, for each order: your email address, the order and payment references, the amount, the date, and the licence key we issued to you. We use this to deliver your licence key on the order page and by email, to answer support requests, to process refunds, and to keep the accounting records the law requires. Licence emails are sent through Resend.

We keep order records for as long as required for tax and accounting purposes, and to be able to re-send a lost licence key. We do not sell or rent your information, and we do not use it for marketing unless you ask us to.

Activating and moving a licence

Because a licence covers one computer at a time, a Mac or a Windows PC, we have to remember which computer that is. For each licence we keep: the address that owns it (the buyer's, or the recipient's for a gift), whether it is currently active, refunded or on hold, the fingerprint of the computer it is activated on, a counter that increases each time it moves, and the signed receipt we issued.

When you move a licence we keep a record of the move — when it happened and the fingerprints involved — for 90 days, so we can help with support questions and notice abuse. After that we remove the old fingerprints and keep only the counter. We store a hash to verify your transfer code. Our email outbox also temporarily holds the readable code so it can be sent. We clear that body when the code is used, replaced, or exhausted, or during the first maintenance pass after its 15-minute expiry. Maintenance runs every minute while the service is running. This does not remove copies in existing backups, at our email provider or in your mailbox. We do not put open or click tracking in these emails.

We keep the current owner, status and activation for a licence as long as you have it, because that is what lets you reinstall, recover a lost key and move to a new computer. New application request logs are kept for 14 days or less.

Support

If you email support@lidkeeper.com, we keep the conversation so we can help you and refer back to it if you write again. Please don't send passwords or full card numbers.

Your rights

You can ask us what we hold about you, ask us to correct it, or ask us to delete it — subject to the records we are legally required to keep. Write to support@lidkeeper.com from the email address you used to buy, and we will respond within 30 days.

Children

Lid Keeper and lidkeeper.com are not directed at children under 16, and we do not knowingly collect information from them.

Changes

If this policy changes, the new version will be posted here with a new date. Material changes will be noted on this page.

Who we are

Lid Keeper is made and sold by JTTTSOLUTIONS INC — legally JTTTsolutions, Inc., a Delaware corporation. Contact: support@lidkeeper.com.