About the app: - This app give the train time in offline and also online. This is a very popular app. Because it will train timing in offline accurately. If you had no data then you can use this app.
How you use it in offline: - If you want to use this app you need to be install it in your phone. This app is available on Google Play Store. Now open this app and give the name of two stations click on the find train bottom. Then you can see all the train between the two station with proper timing. It will also give the update of the position of your train, on offline when you inside the train( using GPS) . You can set alarm for your arriving to the destination station. If you set this alarm then it will notified you when you arrive your destination station. All of these facilities are available in offline in this app.
My opinion: - Basically I am a passenger of local train. When I will travel in train then I use this app. And I am very satisfied by using this app. If you want to get all of these features in offline then you need to be used this app. I recommend to everyone to use this app for the travelling time.