(ROOT apps, tweaks, roms, scripts, hacks) cydia like app for android?
Xposed Framework is an alternative to Cydia on Android. but that doesn't work on Android 5.0 just yet. An Alpha-Version was just made available. The installation process is different though and it is still buggy. Only works on Arm7 chips so far.

http://repo.xposed.info/module/de.robv.android.xposed.installer