Market rates do not change on weekends, but Youtrip and Revolut, to protect themselves for whatever reasons, lower the rates or charge an excess. I understand Trust card does not lower the rates or charge excess for weekends.
Foreign currency transactions
If you use your credit card to pay in a foreign currency (or get a refund in a foreign currency), here’s what
will happen: (1) The foreign currency amount will be converted from US dollars into Singapore dollars at the
foreign exchange rate provided by Visa with no fee from Trust (and if it’s not in US dollars, it’ll first be
converted to US dollars). (2) For a credit transaction, we’ll process the Singapore dollar amount on your
credit card. (3) For a refund, we’ll credit the Singapore dollar amount on your credit card. Please remember
that some transactions may be processed overseas even if displayed in Singapore dollars. We will consider
these transactions as using your Trust card in a foreign currency. Check with the retailer if you’re not sure.
Dynamic currency conversion (DCC)
If your foreign currency transactions (including overseas and online transactions) are converted into
Singapore dollars via DCC, this means that the process of conversion and the exchange rate applied will be
determined by the relevant DCC service provider and not by us.
I think Trust lose out on Youtrip base on exchange rate.