The WRTA is changing schedules, routes, and fares, and this may affect the operation of just another transit app.  In fact I got a request from a user to update jata, and I replied:

Hi Ginny,
 Thank you for using jata.  And for your work summarizing the WRTA changes.
 A main strategy used when I wrote jata is that it uses live data from the internet, and schedule changes should not affect it.  There ARE some steps you can do to make sure that any schedule changes are  reflected in the app.  
 This describes the current (v1.3.8) jata.   Some older versions do not have a settings button on the main screen,  but have a different method to access the settings.
  • In the Jata main screen tap the "Settings" button (lower right)
  • In the "Caching" section, there is a button "Clear Cache".  Tap this.  Another Screen "Cache Options" should appear.  Select WRTA, and tap "Clear Selected"
  • Use the back button to return to main screen.  Route numbers, names, and stops should be updates per the new schedules.  Arrival times are not cached, and should agree with the WRTA bustracker web site.
 Caveat 1:  Any Favorites which have changed (route or stop has been removed) will not be updated.  You will have to check these.  
 Caveat 2:  WRTA route descriptions come from a separate web site, and are incorporated into jata using a tool at my own web site.  So getting route descriptions on the route screen will depend on the WRTA updating their gtfs file at  This site seems down right now and I may need to work on this.  Note that this complication arises due to WRTA's implementation of the Clever Devices tracking system.  Route descriptions could be available on the WRTA tracker site (Chicago Transit Authority includes them), but they are (or were) not.
 Please report any problems to me.  I will be checking how it behaves on Monday.
 Thanks again,

Regarding the above Caveat 2, I have contacted WRTA about the location of the gtfs file and with luck I can update jata and/or jata-glue to obtain route descriptions.

Keep on tripping!