InkveilDownload
Inkveil for Windows
Free to download. The free version finds and reviews everything and saves 3 files at a time; a licence or the 14-day trial removes the limits.
If Windows shows a blue “Windows protected your PC” box
That appears for new software from small publishers. Click More info, then Run anyway. You can compare the SHA-256 above with the file you downloaded if you want to be sure it's the original.
Installing
The installer puts Inkveil in your user folder and needs no administrator rights. Your settings and licence are kept when you update or reinstall.
Activating
Click Free version at the top right of the app, paste your key, press Activate. It works offline.