I'm still looking for such a solution that works well on mobile. Spideroak's iOS app is very rudimentary compared to Dropbox. Cryptomator is headed in the righ

I'm still looking for such a solution that works well on mobile. Spideroak's iOS app is very rudimentary compared to Dropbox. Cryptomator is headed in the right direction (and open source!), but they have not yet implemented iOS 11 Files integration. Boxcryptor has, and it actually works OK, but desktop performance is poor.