Why can't I find mobike in Xi 'an?

The battle for capital between ofo and mobike ended in both losses, and finally the huge market was occupied by the latecomers, Kiyoma Bike and Hellobike. Interestingly, however, the reason why Green Orange Bicycle and Ha _ Bike can catch up is not that there is much advantage in price. On the contrary, their charging price is even more expensive than that of mobike in the "subsidy war" stage.