There are no data or cellular network charges to use this tour app!Turn your iPhone or 3G/4G capable iPad into a Tour Guide and take your driving tours and sightseeing to a whole new level with the GyPSy Guide GPS Tour from Las Vegas to Hoover Dam and return. Commentary plays AUTOMATICALLY as you drive. GyPSy Guide will provide commentary as you drive so you won't miss any of the fantastic scenic viewpoints or fascinating stories from Las Vegas. ** Once downloaded, this tour REQUIRES NO DATA to operate and activate, so you wont incur roaming or data charges. Just download the app on Wi-Fi from your network at home or use the free Wi-Fi at the airport, hotel or any other location.Professional tour guides have filled the guide with interesting and entertaining stories, loads of tips and advice on what to do and will point out places of interest as you approach them. There are 100+ commentary points on this tour. Its just like driving around with a local expert.On our drive towards Hoover Dam there is an opportunity to stop at Ethel Ms Chocolate factory. Along the drive you will here stories about how the dam and a whole new town were built for this massive project. After visiting the dam and checking out the incredible views from the ByPass Bridge we drive back to the Strip a different way and share stories of what is was like when the Mob came to Vegas.To start this tour, just drive south along Las Vegas Blvd. We will suggest a photo stop at the Welcome to Fabulous Las Vegas sign, and then we turn towards the dam. GyPSy will give you the directions you need to follow the tour route.The map will display your position and upcoming audio points. You can also preview the tour before you arrive, or re-live your vacation after you return home. This tour is not just a directory but a designed tour to follow, just like how a tour guide would take you. Its simple and entertaining; just let GyPSy provide commentary automatically as you travel.** WiFI-only iPad users: the tours will not activate commentary automatically because this model does not contain a GPS chip. All iPhones and iPad 3G/4G have GPS chips and will activate the tours as your drive.++ Continued use of GPS running in the background can dramatically decrease battery life.