I’ve noticed other people with the Monzo App (iOS) have a chart at the top which shows their balance varying as money is spent or deposited. My App does not have this and I don’t see a setting that turns it on. What gives?
you need a complete months worth of info to get the chart I believe
I’m guessing you’re a new user? You need a full calendar month’s worth of data before the pulse graph will show up.
previous comment from Monzo 
I was going to say Lucky Person, as there are those who would just love to turn off that damn graph, but like others say it will appear after a month and then you will never be able to get rid of it