In Open Street Maps (OSM), the max latitude that can be converted to tiles is +85.0511 and the minimum is -85.0511 (see https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames).
However in Apple Maps allows to download from -90 to 90. So, a map that uses Apple Maps to display the coords will be able to request areas beyond the OSM limit.
In Open Street Maps (OSM), the max latitude that can be converted to tiles is +85.0511 and the minimum is -85.0511 (see https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames).
However in Apple Maps allows to download from -90 to 90. So, a map that uses Apple Maps to display the coords will be able to request areas beyond the OSM limit.