About LCTR
LCTR makes Windows apps and free browser tools for everyday file jobs: PDF, video, photos, music, CAD and office work.
- Pay once. Own it.
Each app is one payment. No subscription, no monthly plan, no upsell to keep using what you bought. - No account
You do not sign up for anything. The apps do not ask you to log in. - Works offline
The apps run on your PC. Your files stay on your PC and nothing needs the internet. - Free tools in your browser
The free tools process files on your device. Nothing is uploaded to us.
How buying works
- Microsoft Store: you buy with your Microsoft account, most apps have a free 7-day trial, and Microsoft takes the payment, sends the receipt and handles refunds under its own policy.
- Direct from us on Gumroad: you pay once, get a .zip with the app, unzip it and run it. Gumroad takes the payment and emails the receipt.
- Free browser tools: free for normal files. A few big jobs have a 1.00 euro 24-hour Day Pass, paid through Stripe. See Pricing and the Refund policy.
Refunds and help
Apps bought directly on Gumroad have a 14-day money-back guarantee, no questions asked: write to support@gzor.es with your receipt. Microsoft Store purchases follow the Microsoft Store refund policy. The refund policy page has the details, including the web tool passes.
More: FAQ | Contact | Pricing | Refund policy | Privacy
What we make and why
LCTR is an independent studio. We make two kinds of things: Windows apps you buy once, and small tools that run in your browser. Both aim at ordinary file jobs, like fixing a PDF, cutting a video or opening a spreadsheet, without a subscription.
How to tell which one you need
- A one-off job on a normal file: use a free browser tool. Nothing is uploaded.
- A job you do every week, or a big file: look at the Windows apps, or at the 24-hour pass if it is just today.
- A file type nobody opens by default: search the tools list, there are viewers for many formats.
How to reach us
- Write to support@gzor.es.
- Say which app or tool, and the version if you have it.
- For a purchase, add the receipt so we can find it. We reply from the same address.
Common questions
Do the apps phone home?
The apps work offline and need no account. Check each app's privacy page for the details of that app.
Why two ways to buy?
The Microsoft Store is easiest if you use a Microsoft account. Gumroad gives you a plain .zip for people who prefer not to use the Store.
Can I get an invoice?
Yes. Generate one with your company details from your receipt.