The OnePlus One runs on CyanogenMod 11S — a slightly enhanced and tweaked version of the CM11 builds with some brand new apps like Camera and Gallery.
Now, since the first batch of OnePlus One units have started reaching the hands of consumers, it was all but given that someone would extract those APKs and release it for other CyanogenMod users.
The good folks over at SmartDroid.de have done just that. They have extracted and uploaded the new Camera, Gallery, AudioFX, Bootnamiation and CyanogenMod theme store APKs from the OnePlus One for other Android users. If you are running CyanogenMod on your Android device, or a near stock build of stock Android, these apps should work without any issues.
However, if you own a Samsung, HTC or LG device running stock ROM, your mileage will vary.The Camera, Gallery and AudioFX app worked like a charm on my Nexus 5 running the latest CyanogenMod 11 nightly. Installation is as simple as downloading the APK and installing it on your handset. You will only need root access if you want to apply the bootanimation as well.
You can find the download link of the APKs over at SmartDroid.de.