Camera alternative for lollipop.

Hello, i just wanted to know if there is an alternative to the stock google camera app on lollipop. I find it rather slow and limited for the options it offers. Do we have any ported camera app from other devices or an enhanced version of the stock camera app for the Nexus 4 ? Answers are highly appreciated, thank you.
Im using nexus 4 running stock rom 5.1.x and kernel, rooted with unlocked bootloader.

Issue's resetting phone - Any alternative solutions?

Hey guys,

I bought a phone off of Craigslist and it appears that the phone is locked with a password. I tried to go through the bootloader and do a factory reset but I get a message that the MDM Does Not Allow Reset or something along those lines. I have also tried to use Odin to flash a stock recovery, that goes through successfully, but upon starting up the phone it appears that the password is still locked to the phone and nothing changed.

I tried calling the person who I purchased the phone from and there is no answer, so at this point I feel like I lost money and cant use the phone.

Please help