It is still something requested and there should be one just because to service those who want it but it won't suddenly change the user numbers, it won't be something like "oh we have 50 active users on average and with app we became 100" type of deal, it would be more like 50 to 60 at most if you ask me.
I think it is just something to meet the needs of the user to the fullest. You know, each customer has a different interest, while you can't prioritize one customer over the other. So it is best to meet the requirements of all. It can be difficult, but by prioritizing one request first, other requests can be made in the future. And obviously, the web version is always preferred over the mobile application.
Dont underestimate how many people use and prefer mobile to desktop versions. We made that mistake, too, with our site at the beginning. Nowadays its like 15 : 85 in favour of our mobile version, leading to the fact that we ve shifted development resources from the desktop to the mobile version.