(Q).
Given this review: "Awesome 👍 There's also a great step-by-step tutorial on the website on how to setup and then integrate this app with K-9 Mail app to sign and secure your emails." Would you recommend this app to a friend? Not at all, No, Maybe, Yes, or Definitely?
(A).
Definitely

(Q).
Given this review: "Did nt work" Would you recommend this app to a friend? Not at all, No, Maybe, Yes, or Definitely?
(A).
Not at all

(Q).
Given this review: "Root shell missing. I run the test option but it keeps telling me the root shell is missing not sure what that means exactly." Would you recommend this app to a friend? Not at all, No, Maybe, Yes, or Definitely?
(A).
Maybe