The idea is to let you know the price of bitcoin
What do you mean "let you know the price of bitcoin"? Did you mean a display of prices "which platform or can set it," notifications "like social media apps" or alerts "Vibration or ringing"?
Without stopping you from doing other work. So you would be able to react quickly to price changes and take advantage of it to make a profit.
It means that I will do this by my self, but you do not consider that this will prevent me from doing the other things.
Downloading applications from an unknown site is dangerous. + Many applications offer this feature with less risk
I also recommend mentioning or adding the advantages of the application because price verification/notifications/displaying not considered a characteristic feature.