I'll be upgrading this fall from my 5S to a 6S or 6S Plus and am undecided about the size. I know the physicality of carrying it around is something only I can decide, but I remember reading here in the past that apps are not well-optimized for the 6 Plus, particularly third-party apps. I often see in reviews of popular apps people complaining that the app looks terrible on the Plus because it's just a weird zoomed-in version (or a lame letterboxed version) and doesn't take advantage of the Plus's higher resolution. I'm really intrigued by the higher pixel-density on the Plus but don't think it would be worth it if most things aren't configured for it anyway. Any thoughts from Plus owners on the state of the Apps these days?