887
You can watch stallmans talk here for reference: http://cdn.media.ccc.de/congress/31C3/webm-hd/31c3-6123-en-d...
Ionic didn't need me to create an account and everything you list in this news title i can use without an account. Ionic also begins their getting started with "Install Ionic" so the fork part was even more misleading. I immediately got disapointed.
I don't know but every time i run into an "accountwall" within the first 10 seconds i immediately turn away and loose all interest.
I also wouldn't call something where i need to give any information to evaluate it "free".
You can get the latest K9 Alpha from here: https://github.com/k9mail/k-9/releases/tag/4.904
..and should use OpenKeyChain instead of APG, since its no longer maintained. http://openkeychain.org/ (also available on F-Droid)
This at least removes the need to push decrypt on every Message although thee might be Bugs.
Recommended use is with Thunderbird and Enigmail on desktop, where you should also have your mail filters sorting your mail to the IMAP folders.
To install use F-Droid. F-Droid ist the Open Software Repository for Android. https://f-droid.org/
This is/feels like the recommended way to use PGP at the moment or at least the most useable.