We spend 145 minutes a day on our phones using it on average 76 times, with most time spent on Facebook. – from https://tribune.com.pk/story/1142441/wont-believe-much-time-spend-smartphones-daily/
I looked at different websites with some claiming different statistics. Karl therefore told me to maybe to some of my own research with surveys or maybe monitoring how log i spend on my phone.
I looked at the different battery uses of a few of my friends to see how which apps are used the most, and then i therefore can see which apps to focus on.
Snapchat, Facebook and instagram seem to be the ones that people are using the most.