ViewIT is the best offline PST/OST file reader written for Android devices. This app works on Android 4.0 and up. We have designed the app to be responsive, user-friendly and intuitive. ViewIT helps in viewing archived Outlook mails as well as performing blazing fast text searches - probably the fastest yet on a mobile device. It uses advanced indexing techniques to perform ultra-fast searches based on any email metadata like subject, body, from, to and text.