What I think would be nice, if there was a possibility to convert money to all supported currencies to avoid weekend conversion rates.
For example, if I am going on a trip to Poland. I can easily top-up the money in EUR, and as I use Revolut, all purchases in PLN get converted to EUR the same day. The problem is, during weekend, there is a 0.5-1.5% fee due to protect Revolut from instability of the currencies.
So it would be nice, if we could just exchange EUR to another currency before the trip (top-up can stay in EUR), just so we don’t need to worry about weekend conversion rate.