Sources at Banco Santander are claiming that Apple Pay will launch in Spain tomorrow, Spanish site Applesfera reports. Santander customers in the UK can already use the mobile payment service, and barring any unforeseen difficulties, sources at the bank said a public announcement about the launch in Spain will be made tomorrow morning. Apple Pay had a rocky start during its recent launch in Japan and is still not available in Germany despite rumors that it would arrive last month. [via 9to5Mac]