This site
No cookies, no analytics and no requests to anyone else's servers. Like any web server, it keeps standard access logs (IP address, browser and page) for security and to count visits. They are deleted after 14 days.
Student Invoice
- Everything you enter stays on your PC, including the automatic backups.
- It connects to Google only if you choose to connect Gmail, and then only to save invoice drafts in your Gmail. It can create drafts, and it does not read your email.
- The sign-in is kept in Windows Credential Manager on your PC.
- It checks dev.wolfyk.com for updates. Updates are signed and checked before they install.
- If you send feedback from the app, that message and a note of the app version are sent through EmailJS to the developer. Nothing is sent otherwise.
- No tracking, no analytics, no accounts.
xpdt
It runs entirely on your own machine and sends nothing anywhere.
Updated 1 October 2026.