Android devices: Free download available now in the Google Play Store for Android devices-- the ChamberMaster and MemberZone mobile apps for your staff.iOS devices: Download the free app for iOS devices in the Apple iTunes Store - for ChamberMaster and MemberZone staff.Now you'll have up-to-date membership information at your fingertips no matter where you are. Watch this overview video and view answers to FAQs.Simply click Account in your left-hand menu within your database and select the “Mobile Application” tab. Select to “Upgrade to Premium” and click the “Upgrade” button.View answers to FAQs about the mobile staff app.