To download the mobile app for Trade-Up, follow these links
Samsung / Android
https://play.google.com/store/apps/details?id=au.com.tradeup
Iphone / Apple
https://itunes.apple.com/us/app/trade-up/id877455920?mt=8
or
Search browse for “Trade-Up Productivity” in Apple iTunes Store or Google Play Store. Look for the orange U with black upward arrow logo in App Store and Orange A logo in Google Play. Download the app.