You need to be online for the first time only, thereafter it will work offline.
If buttons are not clickable or it shows errors repeatedly you need to be online.
If error persists select "MENU" on top-right corner and the select "Reset Database".
This app performs following functions.
1. Show Time Table of Trains.
2. Show Time Table of Stations.
3. Plan your Journey by selecting two stations.
4. See the distance between any two stations, where trains operate.
5. Calculate fair of any two stations, where trains operate.
We do not need any permission except Internet.
This is to download data for the first time use.
And also if any data is updated.