Hello!
You might want to check out Blokada 5 vs Blokada 6
For Blokada v6 that is available on Google Play, a subscription to Blokada Cloud or Blokada Plus is required.
For Blokada v5 that is available for download through blokada.org directly, a subscription is optional.
A subscription to Blokada Plus is completely optional in both versions and is only necessary if you want the full VPN features to encrypt all your traffic.
If you could quote the specific paragraphs that you believe to be misleading I’ll make sure we improve those.
For Windows, you may try to use Blokada Cloud as described here: Blokada Cloud - #3 by balboah