This application is iOS version of famous and first Astrology software Kundli. That was developed by Durlabh Jain .
https://kundli.durlabh.com/

Kundli is an astrology software with following features -

Pick any category, 'Horoscope' or 'Matching' and then go.
Most Accurate Calculations
Screen Preview - Charts.
Storage of horoscopes and modules for future references
South/North Indian Charting

Also available in 'Hindi' language.