Not for me. I am currently evaluating Strongbox and will consider a purchase of Strongbox Zero for seemingly unlimited use.
But for others, it should be a caveat that you would not get the full security provided by Strongbox Zero or Strongbox Pro.
> a caveat that you would not get the full security
Paying the developer for access to the full security version, while the free one has more than security than most actually use, seems reasonable to me?
> still missing from the free version
The obvious solution is to pay. Any reason you are opposed to this?