For both iPhone and iPad version the installation process has been simplified by not needing to manually rename files to *.pyui anymore.
Further, the result output of a selected date and a selected location now additionaly shows a 2D graphic containing the location of the earth on its path around the sun and the relative position of the sun towards earth at the given location including latitude.
In the example below we see the latitude of a location in Australia on the southern hemisphere as a long horizontal line, showing the longest duration of day length at winter solistice on December 21st, which is on the southern hemisphere actually a summer solistice.
On the iPhone version, the sun compass apps are still included. These are not contained in the iPad version, though.
The new 2D graphics use generic dates, i.e. 21.3., 21.6, 23.9. and 21.12 for astronomic seasons, whereas in reality, these dates can differ slightly. Further, the earth path around the sun is depicted as a perfect circle instead of an ellipse and I assume a constant moving speed of the earth, which is not true, but as an approximiation and to get a general understanding, I consider the picture to be useful.