Your entries
stay with you.

Tools and downloads

Calculator entries and checklist ticks exist in the current browser page. They are not sent to us or saved in local storage. Reloading loses them. The checklist save button creates a text file on your device when you choose to download it.

External services

Cloudflare serves the website and may process technical request information under its own policies. Amazon, Payhip and official sites process visits under their own policies when you follow a link. This site has no embedded checkout, external fonts, analytics scripts, advertising scripts or visitor counter.

Email contact

If you email info@reallybyte.com, the information you send is used to handle your enquiry. Avoid sending unnecessary personal, payment or vehicle-document details. Purchases and download delivery are handled by Payhip.

Changes

Reviewed 9 October 2026. If the site later adds data collection or other services, this page should be updated to describe them.