Strætó.is is a free app developed by Strætó bs., the public transport authority for the Greater Reykjavík area, that provides comprehensive information and services to help plan your journey in Iceland. The app includes a journey planner, real-time travel information, mobile payment options, and much more.

With Strætó.is, travellers can plan their journey, view stop information, and receive real-time updates on their journey. The app also features mobile ticketing for single fairs in the Greater Reykjavík area and a journey planner for public transport options between any two locations in the areas included in the app. These areas cover the whole south coast from Reykjavík to Höfn í Hornafirði, the western and northern parts of Iceland, and city buses for the city of Akureyri.

The app's departure boards show the next scheduled buses at every stop in the areas included in the app, and live bus times are available in the same areas. Additionally, the app features buses location in real-time and news and notices affecting public transport services. Overall, Strætó.is is a must-have for anyone travelling via public transport in Iceland.