Question: how to transfer data from iphone 6 to samsung galaxy s9?
Answer: Grab a USB OTG cable to connect your iPhone and Galaxy S9 (Plus).
Open the app on Galaxy S9 (Plus) and choose Smart Switch option. Then tap Trust on iPhone's pop-up notification.
Tick the contents you're ready to copy cross from iPhone to Galaxy S9 Plus)and tap Import to start the data transfer.