If you’d like to be even more productive and be able to multi-task while using your iPhone or iPad, the ‘Split’ web browser app allows you to run two browser tabs side by side. The app works in portrait and landscape views, and for each website that’s split in the browser you have a back button, you can bookmark a page, and you can open one of the websites into full-screen mode and simply tap to go back to the split-screen. The Split app is free from Apple’s App Store, and similar split browser apps are also available for Android.