You can run it on all 3 platforms (all included in the 1 cost) and it will work on a single file. You can put that on Dropbox or a network share, etc. This way

You can run it on all 3 platforms (all included in the 1 cost) and it will work on a single file. You can put that on Dropbox or a network share, etc. This way, you have a central place to manage your wiki but offline. Not a website or saas app,etc.