Keep Everything saves web pages to Dropbox so you can read them later. It can save all or just a portion of web page as well as data from other applications(Twitter, YouTube, Pocket, and ReadKit and with Dropbox sync between the OS X and iOS version, your data is accessible wherever and whenever you need it.
MailStore Home lets you archive your private emails from almost any source and search through them quickly. Keep your emails safe and retrievable for years