Quraans calendar is an app published by Hijri Committee to produce Error-Free Calendar for Mankind.
This calendar is an unique one where dates exactly tallying with moon-phases, as directed by Noble Quran (2:189). Manaazils were fixed by Almighty Allah on the very day the heavens and earth were created.
We do not have to adjust dates at the start of each and every month as required by other similar applications.
We can also have moon phase of each day, % of illumination, geo-position of conjunction on each month, Hijri converter, Age-calculator, description & also timings of Solar and Lunar eclipses, Quraanic verses & hadeeths in support of calculated Moon Calendar etc.