RET App is a free Android application developed by RET, designed to provide all-in-one solutions for public transport in Rotterdam. It offers real-time travel information and ticket purchasing options for all RET buses, trams, and metros. With the RET App, you can access real-time departure times for your favorite lines and stops. You can also receive push notifications about any line disruptions or changes in your favorite lines.

The route planner in the RET App allows you to plan your journey from your current location or any other location in the Netherlands. It provides you with a comprehensive travel plan that includes real-time departure times for buses, trams, metros, and trains. The RET App also offers information about available shared mobility options and current weather forecasts in Rotterdam.

The RET App offers additional features such as an overview of all line disruptions, lift and escalator outages, and customer service. It provides a fast and easy way to purchase tickets for all RET buses, trams, and metros. Overall, the RET App is an excellent tool for anyone traveling on public transport in Rotterdam.