The App has been developed by using Dr Zubair Ali Zais famous book "Muktasar Sahi Namaz E Nabavi". The users are request to not only use the App but also read the book in detail to make their prayers as better as possible to achieve salvation on the Day of Resurrection.
It was narrated from Abu Hurayrah that the Prophet (peace and blessings of Allaah be upon him) said: “The first thing among their deeds for which the people will be brought to account on the Day of Resurrection will be prayer. Our Lord will say to His angels, although He knows best, ‘Look at My slave’s prayer, is it complete or lacking?’ If it is complete, it will be recorded as complete, but if it is lacking, He will say, ‘Look and see whether my slave did any voluntary (naafil) prayers.’ If he had done voluntary prayers, He will say, ‘Complete the obligatory prayers of My slave from his voluntary prayers.’ Then the rest of his deeds will be examined in a similar manner.”
(Narrated by Abu Dawood, 864; classed as saheeh by al-Albaani in Saheeh Abi Dawood, 770).