Application '2 GIS' is a very extensive and useful pocket guide, which not only contains a lot of information about various sights and organizations of the city with a detailed description and reflection on the city map, but also capable of working without an Internet connection. I propose to disassemble the application in more detail. The first thing that needs to be done immediately after launch is to choose the city in which you are either already located, or the one to which you are going to be poisoned. And here I must say that there is plenty to choose from: 4 countries (Italy, Kazakhstan, Russia and Ukraine) and about 250 cities in total. I propose to choose Moscow, classically, so to speak. By the way, by choosing Moscow, we will also receive information about the cities of the Moscow region (for example, Balashikha, Krasnogorsk and even Istra). Further, our attention is invited to choose the organization of interest: there are pharmacies, banks, and bars, in general, whatever your heart desires. If you are interested in a specific company, then you need to press the appropriate button on the bottom panel and you will immediately find what interests you. Also here you will find information about the work schedule, the organization of interest, phone number, address, and you can also see its location on the map. The developers have tried very hard when working with the 'routes' tab. The application does not just plot the route, but does it wisely, so to speak, shows the most convenient and shortest route with fewer changes. Maps in 2 GIS are also good news. Firstly, the maps work offline, which is a huge plus that distinguishes 2 GIS from other similar applications. Secondly, the maps are detailed. And, thirdly, when zooming in, the maps are displayed in 3D. Comfortable and looks very nice.