Venmo only works in the United States as US resident and with a US bank account. Swish only works in Sweden if you have a Swedish bank account, Bluecode only works in Germany and Austria.
That fragmentation doesn't matter too much if you're a resident of one country and don't travel too much, but it becomes a real issue if you travel or for some other reason reside in another country. For example, Sweden is mostly cashless and people use Swish to pay each other or to pay for goods at smaller merchants. Without a Swish account (that requires a Swedish bank account) you're locked out and can't pay anyone or receive payments.
For Europa EMPSA (https://empsa.org/) will hopefully make that situation a little bit better, as it would enable mobile cross-border payments within the European Union. But that project is still in the early stages and a platform like WhatsApp that's able to provide frictionless, cheap, cross-border payments looks definitely like something that could be successful.
That fragmentation doesn't matter too much if you're a resident of one country and don't travel too much, but it becomes a real issue if you travel or for some other reason reside in another country. For example, Sweden is mostly cashless and people use Swish to pay each other or to pay for goods at smaller merchants. Without a Swish account (that requires a Swedish bank account) you're locked out and can't pay anyone or receive payments.
For Europa EMPSA (https://empsa.org/) will hopefully make that situation a little bit better, as it would enable mobile cross-border payments within the European Union. But that project is still in the early stages and a platform like WhatsApp that's able to provide frictionless, cheap, cross-border payments looks definitely like something that could be successful.