Caltrain+ is a Caltrain schedule and trip planning app designed for iPhone users. Developed by Jonathan Sahoo, this app provides a quick and easy way to determine which train to take when traveling from one station to another.

With Caltrain+, users can view full timetables, receive service alerts, and access a system map all within the app. To use the app, simply select the departure and arrival stations, choose the timetable (Weekday or Weekend), and Caltrain+ will generate a complete list of matching trains. Each train is accompanied by its number, service type (Local, Limited, or Baby Bullet), departure and arrival times, and trip duration.

For added convenience, users can specify an "arrive by" time to filter the list of trains and only display those that will get them to their destination station before the specified time. Additionally, tapping on a specific train will provide a full list of scheduled stops.

Please note that the timetable information is sourced from 511.org, ensuring accuracy and reliability.

Overall, Caltrain+ is a valuable tool for Caltrain commuters, providing them with the necessary information to plan their trips efficiently and conveniently.