This looks interesting . So far only available for Windows 8.1 and above , and Android ( with Linux and OSX to come ) Any thoughts ?
I'm a little nervous about that. It's sounds custom. And custom is typically considered bad. But maybe this is OK. Also, this is not fully open source: https://qabel.de/en/faq#849
My thoughts also . The general academic opinion seems to be that home-brewed encryption is " a very bad idea " , even for cryptographers ! A bit like using matches to search for gas leaks But I think it's worth watching to see how things develop. Likewise with Subgraph ..... I don't want it right now , but I might in future.
Sorry but I can't answer that one for you . What I wrote came directly from looking around their website to see what was available for download. I know nothing more than that ..... it was the overall concept that got my attention.