Honestly: it ranges from tens of dollars a month for topical treatment to five figures for surgical transplantation, and every practice sets its own prices. Anyone quoting you a number before a doctor has seen your scalp is guessing.
What Uberhair can tell you precisely is its own part: the hair check is free, the booking is free, and Uberhair adds no fee to your medical care. Treatment prices are set by the practice you choose and discussed openly at your consultation — that conversation, with your actual case in front of a doctor, is where a real number comes from.
One cost nobody prices in: years spent on an unmeasured treatment that is not working. Measurement is the cheapest thing in this field.