Build an Islamic praying app

I want to make an Islamic praying app that notifies people to pray and the times of the prayers should be aligned with the praying times from that area. The more prayers they make the more rewards they collect. Also, I want the app to send reminders in the morning and night for small prayers. The reward comes in a form of a tree, when the notification goes off a tree starts growing and they have until the next prayer to pray. When they do pray the tree grows there and when they don’t it dies. And there should be a pathway going up. There should also be an overview feature where you can see how many prayers you’ve made (like a historical view of that person’s prayers / accomplishments). And if a person makes extra prayers they collect extra rewards. The prayers that a person misses they should be able to make up at a later time too. I would like to discuss this more verbally as it will be easier to discuss.