Make your trip even more convenient with Travel Apps!  

Smart CallBack 
It’s an application that hides callback process in Android operated handsets. when calling with TravelSim. Install it and make the calls conveniently!

Smart Callback application runs in background mode. Moreover, it allows to make outgoing calls in a common way – just dialing a number in international format on handset’s keyboard or dialing a number from the contact list.  Please note that to hide callback process the Callback auto answer function and Dialing assistant function have to be enabled.

Smart CallBack For Android

Control and reduce data costs
We suggest that you use Onavo app. It is available for iPhone, iPad and Android. Onavo puts smartphone and tablet users in control of their mobile data usage.