LokLok - Leave notes to your friends or partner using this shared lock screen

Now you don't have to call your spouse hundred times just to remind him/her to get onions from the store. Instead leave a note on his/her lock screen. Every time he/she  checks the phone, the lock screen will say "get onions from the store". 

LokLok is a shared lock screen, which is one of its kind. LokLok is available in playstore, but still it is in beta stage. 

Create a group with two or more people and sync up the lock screen. Every time you update the lock screen it will reflect in everyone else's phone. And it holds true even when others updates the lock screen. You can also exhibit some of your drawing skills through this app. Draw on the lock screen and show it off to everyone who are part of the group. Double tap on the lock screen to get into drawing mode. Add pictures, leave a note, draw using different colors and swipe using two fingers to erase the contents on the screen. Drawing interface provided by LokLok is simply superb. I even tried drawing using a stylus and I must say it was great experience. I have no complaints at all about its drawing interface.

This works on top of your default lock screen, so the security part is taken care by the default lock screen. Today, LokLok screen will appear first and then the default lock screen's security will be asked. I see a small flaw in this design, you would have guessed it by now. Everyone who has your device can see the note on LokLok without inputting the security PIN or pattern. A small change would fix this. That is, security PIN or pattern should be prompted first and then the note on lock screen should be shown.