I think jio has to improve some and serious issue regarding this app.this app offline automatically and after offline you can’t recive any call and any message.this app is not suitable for dual sim phone because it block other sim calling and messaging facility when it offline.this app offline automatically wothout any notifications. Every 15 minute you have check whether offline or online.it is offline you have make online manually.lastly, regarding these issue there is response from jio team.i have already lock my complaint regarding above issues to jio customer care .i am still waiting for jio team response