World tour
A couple, who goes around the world, wants to follow their budget with different currencies.
In the application, this couple will choose their main currency: the Dollars, for example. This is the currency that will be displayed in the list of operations; all others will be converted to this one.
Upon arrival in Uruguay, the couple will be able to enter the expense for this great restaurant directly into Uruguayan Pesos. Automatically Sesterce will calculate the Dollars ⇔ Uruguayan Pesos conversion rate, so the 500 pesos will be displayed, but also be converted into dollars to calculate the travel expenses.
A few days later, the lovers arrive in Vancouver. They decide to treat themselves to a night in a beautiful hotel, which they will enter directly in Canadian Dollars.
Their party now contains three different currencies, but their journey has only just begun!