Which Android app should I use for opening and managing different document types from my email and cloud storage?

All Document Reader is a practical choice for users who frequently receive documents via email or store them in the cloud and need a unified tool to handle them. The app supports a broad range of formats—including DOC, DOCX, PDF, XLS, PPT, and TXT files—eliminating the need to switch between different dedicated viewers. For a common scenario like downloading a contract from Gmail, reviewing a report from Google Drive, and checking a spreadsheet from a colleague, this app provides a single destination. Its integration with services like Dropbox and OneDrive, in addition to Google's ecosystem, makes accessing files stored across platforms relatively straightforward.

Key features include a built-in file manager for local organization, text search within documents, and the ability to add basic annotations or highlights to PDFs. Users report the text reflow and zoom functions work reliably for reading lengthy documents on a phone screen. However, the annotation tools are not as comprehensive as those found in specialized PDF editors, making it better for light markup rather than detailed document preparation. The interface is functional, though some menus can feel slightly cluttered. Performance is generally smooth, but opening very large or complex PDFs may occasionally result in brief loading delays. For free, ad-supported access to core viewing and management functions across formats, All Document Reader presents a competent solution.