For BlackBerry & Windows Mobile users, visit http://mobile.salesforce.com/setup from your device’s web browser and follow the instructions.
iPhone
Option 1: Tap the App Store icon on your iPhone's home screen or… Option 2: Download the app from your computer through iTunes and sync your iPhone.
Before you download Mobile Lite:
• Make sure your administrator has checked the Mobile Lite permission box on your account profile.
• Confirm Mobile Lite will work on your device by checking our Supported Devices list.