It is particularly useful overseas. I was in Belgium at the weekend and all my € spend was immediately translated into £ so I could clearly see how much I was spending. I could also find the café that I went to for breakfast the previous day because it's location is right there in the Monzo app.
The other useful feature is when I'm out drinking. If I loose the card, I can freeze the card from inside the app. Also it means that the next morning I can see how much I spent.
Damn I'm going to Europe at the weekend too, thought the 2% charge my bank does isn't so bad but I may have to finally get on the Monzo train.
If so, for those based in the states, you ought to check out Simple (https://www.simple.com) - it's great, it has a clean user interface, there are no fees, and the customer support team is top notch.
I assume it's the same thing (Simple and Monzo). Anyone know of any major differences between them?
The thing is, their big value add is the instant notifications. As far as I can tell from reading their blog, this took a lot of development effort: https://monzo.com/blog/2015/12/15/why-are-foreign-card-payme...
All of my regular financial accounts (bank, credit cards) can do this. There's typically a page in the account center with settings for sending SMS and email alerts when various types of transactions exceed a certain monetary threshold. I set them all to $0 and get notified of everything as it happens.
I think our banking system is a bit antiquated. Monzo have built a tech stack that is far more advanced than any of our incumbant banks.
They also offer good exchange rates with no fees.
Personally I use it as a travel/buffer card as my main card has been copied in the past and I usually have sub £100 on my Monzo card.