Mobile APP ( Prayer Time for Muslims)

I am looking for Muslim Prayer time application which can be used to check 5 times prayers and other functions.
The app will be deployed on iOS & Android.
It could be with offline server or use my own server.

I would provide you the UI design later. I need it simple and clean.
Pls no codecanyon or resking Apps

Here are some example from Google Play:
https://play.google.com/store/apps/details?id=com.muhammad.muslim.pro.muslimpro.islam.quran.duas.sahih.hadith.bukhari.allah.names.qibla.premium.prayer
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https://play.google.com/store/apps/details?id=prayers.times.qibladirection.salat.time&gl=
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https://play.google.com/store/apps/details?id=com.dawateislami.namaz&gl=

Please feel free to chat with me and discuss about the project further.
Thanks