Interestingly, with Monzo’s USA launch announcement, we have an updated customer figure for Chime.
including fellow unicorn Chime which has around 3m users.
Monzo bounds ahead of rivals with US launch - CityAM
So Chime has taken 6 years to gain 3m users in a market with 300m. Monzo has taken 4 years to gain 2m users in a market 1/6 the size. I like their chances. 