This is an amusing tutorial on how to scam users into giving your app more permissions than it needs. Their popup text reads "Heyday would like to access your location Heyday uses your location to journal places you go. It's completely private and secure."

Now compare their privacy policy:

"If location services are enabled on your mobile device, our HeyDay application will passively and automatically send location information to Hey, Inc..."

"Hey, Inc. cannot guarantee your safety and security and you should be aware that submitting any information and using the Services is done at your own risk."

So, in the popup, they claim to take responsibility for the security of location data, but in reality, they're tracking you at all times and don't take responsibility for the security of the data.