NAVV is an on-board turn-by-turn navigation application for the iPhone produced by Amsterdam company Appstores BV in 2010.  The app allows you to store maps on your iPhone for use when you are unable to connect to wifi or data . It provides GPS navigation navigation using TomTom apps. 
- Jump up^http://iphonetunes.net/index.php/full_article/comments/navv_iphone_navigation_application_debut/
- Jump up^ http://www.navvgps.com/content/aboutus
- Jump up^ NAVV: New Kid of the Low-Cost-Nav Block
- Jump up^ “NAVV Globetrotter” . ITunes . Retrieved 19 April 2017 .