The Seafarers' Trust and the ITF have created apps that seafarers can download on their phones to help them while they are at sea.
This includes the Shore Leave app, which will tell you where your nearest Seafarers Centre is wherever you are in the world. Other useful apps are for health and wellbeing.
Find out more by clicking here https://www.itfseafarers.org/seafarer-apps.cfm
Otherwise, click here for the full list https://www.seafarerhelp.org/en/seafarers-directory