Main screen
The main screen of the app displays the map, your current location and basic controls:
Map scale - related to the selected zoom
Attribution - copyright of the map data and interface provider
Cursor - the pointer displaying info about POIs, defining places for creating user points, etc.
Current location - your location according to GPS and other sensors
-
Map selection - opens the map selection dialog
Centering and map rotation - one tap centers the map screen on your location. Double tap rotates the map according to the compass
Zooming - buttons for fluent map zooms changing
Main menu - opens the general selection of app features and settings
-
Map control
you can
shift the map by simple
touching and dragging 
zoom it in/out by
pinching 
. If you prefer single-hand control,
double-tap and drag the map to zoom it. Otherwise, use the
zooming buttons.
to place your
GPS location in the middle of the map screen, tap the centering button:

to
rotate the map according to your heading or by compass, tap the centering button again:

You can also rotate the map manually with two fingers.
Map selection
Tap the map selection button and select among hiking/biking, winter and satellite maps:
Main menu
Login
Tapping the login button displays a selection of services for login/signup to a Locus account: an e-mail, Apple, Google and Facebook:
When you are logged in, your user name and email address are displayed on the header:
Settings
Premium