For ten years, I have been a user of Intego's FileGuard for keeping confidential documents safe on my Mac. I have no complaint with it, it has always worked well, and I have never had any issue. But I have recently discovered that FileGuard will no longer be supported. It may still work for a long time, or a short time, depending upon what changes Apple introduces.
Anyway, I do not intend to wait for the day when I will no longer be able to use it and I am considering to switch to another, similar app, if I can find one adequate for my needs. What I want is to have protected folders, which I can open and to which I can add new documents, with sub-folders inside the protected folder.
There are not so many apps for Mac doing that. Knox is an obvious candidate, and I have just started testing it. It seems to work well (although reading some reports from users who are no longer able to open their vaults makes me slightly nervous!). But it happens that I had bought some time ago - without using it until now - Apimac's Protect Files. Very similar concept to Intego's FileGuard, thus the switch would be easy. Very easy to use too - but the same can be said for Knox.
Before deciding either to buy Knox or to switch to Protect Files, I would like to know what, according to you, should convince me to buy Knox? What does it offer that makes a difference, for my specific use? What makes it a better and more reliable tool? (Price is not an issue here, since both apps are reasonably priced for what they offer; just it happens that I do already own a Protect Files license, but I am willing to buy Knox if it has a decisive advantage such as more reliability, security, or whatever.)
Thank you for helping me to compare and to make my mind.