You can't call up Apple's CEO and suggest improvements, but you can definitely upgrade your rental property's kitchen to command higher rent.

I really would like an app or site that allows you to compile a list of properties with notes on the spot, and bonus points if it pulls up any info on the property as well. 

My friend all it takes is a bad apple. if you are asking, you are lucky you have not gone through a bad experience-Evicion. 

Any of these real estate apps? 

I would say as an agent if a property is in a rough area I don't put signs since it can attract those bad apples or get stolen. 

FYI I would change the title as I read this and i thought you wanted to create an app for real estate.

Right now, I am an aspiring real estate agent specializing in investment properties while also in the process of developing an app!

.- Working a W2 as a firefighter, posting and consuming content- Leaving my W2 to dive deep into real estate investing and working as an agent... and still watching/posting content all while business was ok - Deleting social media apps (one have one on my phone that I use 10 minutes or less a day), diving deep into building my business and skills which have drastically increased due to pure focus and increasing my business significantly- moral of the story... focus on the things you need to do in business (dollar productive activities) and life experiences while reducing consumption will increase your success  

Loving all the threads in the app and learning from seasoned investors!  

Quote from @Daniel Baker:  You are mixing apples and oranges.