hieraiyem back to the route

hieraiyem android application which does not require internet at all, thats right, does not require internet access.This hieraiyem android application was deliberately made without internet support because as explained above, for example, we get lost in the village, or get lost in the forest, or get lost in the mountains, or even get lost at sea, in these areas obviously we will not find internet access and it is very possible that there are no inhabitants.thats why I made this android application without the need for internet support.This hieraiyem android application is certain and must use GPS, GPS signals are emitted by satellites and can be received by all GPS devices on the earths surface, right, on the earths surface, of course GPS devices will not be optimal if we are not on the earths surface, for example, we are inside sea, in a cave, or in a building.In this hieraiyem android application I have made 4 (four) memory slots to store locations that we believe we have not lost.what do you mean by the phrase "a location that we believe we havent lost"?,when we are traveling, for example we are going up a mountain, when the path is still visible then we will certainly continue to walk without hesitation but suddenly the path runs out and we doubt whether we will take the left, right, or straight side.
well at this point the name "locations that we believe we have not lost"in this position we store it in the hieraiyem android application memory and we can continue the journey, and if it turns out that we are really lost, then we will easily return to the location that we believe we have not lost.