Opera Touch browser has been designed for one-handed web browsing, moving the browser’s key functions within your thumb’s reach allowing an easier browse and search when on the move.
Read more: https://www.techspot.com/downloads/7079-opera-touch.html
https://www.opera.com/mobile/touch
https://play.google.com/store/apps/details?id=com.opera.touch&hl=en
https://opera-touch.en.uptodown.com/android
https://itunes.apple.com/us/app/opera-touch-web-browser/id1411869974?mt=8