Suppose that there is an online app which is interesting because of two main reasons:
- Its beautiful graphics = X
- Its pleasant music = Y
Now I want to tell someone that those two reasons make the app interesting. I made a few sentences which sounded wrong to me:
- X and Y are what makes the app interesting
- X and Y are the reason/ reasons the app is interesting
- These features (X and Y) are what made* the app interesting
*Suppose I want to say that in past.
Which one is correct? Can I use any of the above or there is another way to say it, please?