Having said that, sometimes this can be overcome by virtue of a killer app, and Canary Mail may have one in the form of PGP for iOS. For software where UI is in fact a major part of the value offering, that's particularly concerning. Having to download and test a program or go read reviews to get a basic sense of UI is off putting.
That sort of ultra-sparse modernist UI, where text and links are visually indistinguishable, informational text is spartan, and images are minimal and compressed is not helpful.
I regret to say it but I loathe their website.
