10 Upvotes
Spark for Android The much beloved email client now on Android
PDF Expert 6 Edit PDF text and images on iPhone and iPad.
Spark for Mac Beautiful and intelligent email app
PDF Expert 2 Fast, robust and beautiful PDF editor
Scanner Pro 7 Probably the best way to scan papers
Spark by Readdle Fast, smart and beautiful email client for iOS
Printer Pro by Readdle The most powerful and versatile printer client for iOS
PDF Office by Readdle Create, Edit any PDF from your iPad
Documents 5 A document viewer and media player.