Vietnam runs on VietQR. Your home bank card, Wise, and ApplePay mostly don't. Here's what actually works for foreigners trying to pay like a local.

For tourists in Da Nang whose foreign card just got declined — here is why it happened and how to pay properly for the rest of your trip.

For tourists who've had a card refused at a Vietnamese hotel — or want to know what to do before it happens to them.

For tourists who are tired of watching ATM fees eat into their travel budget every time they need cash in Vietnam.

Bank cards get declined, transfer apps can't pay market stalls, and local e-wallets take weeks to set up. Here's how the real options stack up for foreigners in Vietnam.

Two people built Rounds because they lived through the dread of medical documents they couldn't understand. This is what it does, and why it matters.