OpenKeychain helps you communicate more privately and securely. It uses encryption to ensure that your messages can be read only by the people you send them to, others can send you messages that only you can read, and these messages can be digitally signed so the people getting them are sure who sent them. OpenKeychain is based on the well established OpenPGP standard making...
Document Viewer is a highly customizable document viewer for Android.Supports the following formats:• PDF• DjVu• XPS (OpenXPS)• Comic Books (cbz) (NO support for cbr (rar compressed))• FictionBook (fb2, fb2.zip)Collaboration with electronic publication sites and access to online ebook catalogs is allowed by the supported OPDS protocol.FAQ, information...