Our team has just finished building Krypto Mail v1.x. Of course we used rubymotion for that, don't think we could do it with this amazing framework. Krypto Mail is the fully featured email client for iOS with native, out of the box PGP support. No server-side encryption nonsense, no html-based apps – fully native, end–to–end encryption.
Version 1.x is already in the app store but there are so many things that we want to add. And do that we need beta testers – people who would criticise us when we do stupid things (and maybe praise us for getting it right), test our latest features, tell us when we break things and hopefully help us to find what went wrong.
If you (or for the matter of fact anyone you know) is interested in participating in beta test programme and in securing your mobile email communication – follow this link to join Krypto Mail Beta.
Thank you and see you in TestFlight!