beware medadvisors speculators

Recently, OptumRx, a subsidiary of US healthcare giant UnitedHealth Group updated their OptumRx mobile app: https://play.google.com/store/apps/details?id=com.optum.rx&hl=en_AU

In essence, this app is equivalent to MedAdvisor's app.

This leads to two questions...

Are MedAdvisor's US prospects as good as purported or a mere fantasy construed by a company facing the bleak reality of market saturation?

What happens when OptumRx, or a similar product developed by a company in a much stronger financial condition than MedAdvisor (think Express Scripts, CVS Health) enters the Australian market?

Mr Robert Read, your clock is ticking...