Whichever you choose, just follow the simple steps and you’re all set.
The 3Plus app is available for download on the App Store, Windows Store and the Google Play Store. Most Three phones also come pre-loaded with the 3Plus App. Apple handsets will have a link to the App Store saved in Safari bookmarks.
For further information on 3Plus, go to the App menu and tap the 3Plus section that displays at the bottom of the menu.