Polaris Office by Infraware, INC. is a free office service that runs on platforms such as Android, iOS and Windows Desktop. It is capable of editing Microsoft Office file formats (doc/docx, xls/xlsx, ppt/pptx, pdf, txt, hwp) and viewing PDF files. All files saved in Polaris Office are synchronized with other connected device and thus documents are automatically updated to the latest version. It also provides a variety of cloud storage services such as Google Drive, Dropbox, Box.net, OneDrive, etc. Morevoer, Polaris Office has an agent program that allow upload/download document from desktop computer to mobile device. It is available in several languages: English, Korean, Japanese, Spanish, German, French, Russian, Chinese (Simplified).