This app lets you know all of the 3DS games that have a scene release. There is information about every release, such as region, language, file size, trimmed size, firmware requirement, and lots of other information. You can also copy roms from your computer to your SD card with this app.
support thread - http://gbatemp.net/threads/3ds-games-library.361410/
support thread - http://gbatemp.net/threads/3ds-games-library.361410/