Map services from Google, Yandex, partially Apple shared the pie of the world atlas among themselves. So far, no one has managed to compete with these giants, and it is unlikely that they will ever succeed, with their resources. But enthusiasts do not give up, along with navigation programs from Navitel and iGo, indie developers like Denis Maruda and Andrey Zborovsky with the Wayper navigation application are trying their hand at GPS navigation. According to the developers, by the way very immodest, Wayper offers unique functionality, namely, navigation in the largest cities in the world (their number is very limited, maybe for now) in Offline mode. Of course, Wayper is not the only such application and calling it a unique act is quite bold and even daring, but the giants will tolerate not so. Let's face it, Wayper's rating in App Store is one of the lowest, though the ratings are minuscule, only 25. Most likely, users are in no hurry to admire the development of domestic programmers due to the fact that offline city maps in the application are very, very few. Cities of only 10 countries are available for download, among which there is not even Russia. Calling Wayper the best offline navigator does not turn out to be difficult, after installing the application on iPhone to download maps, you still need to connect your device to the Internet, select the appropriate map and load it into the device memory. The guys could have included maps in the application archive by default, then it would have been more bold to talk about some kind of offline. After loading the desired map, you can look around the city, you can rotate, zoom in or out and move around the map in any direction, though only within one specific city. Three-dimensional maps can only be called a stretch, yes, some buildings protrude slightly upward, but most of the city's territory is on the same plane. The map shows the main attractions, urban infrastructure and useful consumer establishments. In addition to the streets and the names of various establishments, there is no more information on the map, the buildings have no numbering and, accordingly, navigation along the streets is very difficult. Route planning is reduced to filling in only 2 fields, the point of departure (starting position) and the destination. You must enter the text in the language of the country for which you are navigating, i.e. for the USA – in English, for Brazil – in Portuguese. Enter the street name in Russian, the result will be appropriate. The interface in the application is simple, the menu can be accessed from any screen. The app is available in 4 languages, you can switch between them at any time. From the menu of the program, you can tell your friends about the application by mail, in Facebook or Twitter, developers are not humble. There is no need to talk about sounds and voice control in Wayper, do not expect voice navigation along the route, this is not possible in the application. As a conclusion, it is worth noting that the application is distributed free of charge, whether it will always be so or not, time will tell. Today, Wayper cannot even come close to offering what competitors offer, and it does not shine with a knowledge base (maps). In general, there is room for development, the direction is determined, but it also needs to be done faster, we – content consumers are very demanding on the quality of such products.