Orfox is the only mobile application proposed by the Tor project to use Tor’s privacy protections on Android since 2015. The Tor project has now launched the official browser Tor Browser for Android in alpha release. Orfox will be sunset in early 2019 when the stable Tor browser for Android comes out. To get a real personal browsing experience without tracking, surveillance or censorship, download the Tor browser for Android from Google Play: https://play.google.com/store/apps/details?id=org.torproject.torbrowser
Or directly from the site: https://www.torproject.org/download/#android
Added: Orfox bookmark export option!
About a year after we released the alpha version of the Tor Browser on Android, it’s time for Orfox to sink.
If you still have Orfox installed on your device, this release will prompt you to download the new Tor browser for Android.
Learn more: https://blog.torproject.org/orfox-paved-way-tor-browser-android