I created and published the mobile application software that shows the desired IETT bus lines by using the ASMX web services offered through the Istanbul Metropolitan Municipality Open Data Portal.
Information shown about the selected bus;
📌 Current location (on the map)
📌 Door number
📌 Start and end stops
📌 Close stop
📌 Which way to go (last stop)
📌 Date of last location
Every 60 seconds, the busses are updated, while the complete page is not refreshed. Only the content of the map and the information screen, if any, are changing.
This is not official application.