Google has just added some improvements to the Gmail app. With this new update you will be able to install Offline Google mail App in your browser. This add-on will enable you to read, respond and search archived messages without the need for internet connection. You can choose to synchronise up to 31 days og Gmail messages to work with offline. After the start-up the synchronisation will instantly take place anytime Chrome is running.
It goes without saying that you need to have Chrome browser to start using this extension. Just head over to Chrome extension store and click add to chrome to install the add-on. An icon will then appear in the tab pane , click on it and Offline Gmail will load.