Popcorn Android版を支えるライブラリ - Qiita
http://qiita.com/kobakei/items/e76c2356c5d0e9067dde
ActiveAndroid - ORM
Activeandroid by pardom
http://www.activeandroid.com/
Conceal - 暗号化ただし64bit非対応forkあり
Conceal
https://facebook.github.io/conceal/
pristineio/conceal
https://github.com/pristineio/conceal