The Great Ace Attorney is now available in English thanks to Scarlet Study! They have released the patch last week alongside a trailer.
The patch consists of two versions. One for Nintendo 3DS, and the other for Android. Just in case you don’t have Android, the smartphone version also supports emulators like BluStacks or Nox. It is also worth mentioning while The Great Ace Attorney 2 was already released in Japan, Scarlet Study also has translated its Demo while the original is only available in Japanese eShop.