I have been working on an AR clone in Austria since mid September (https://www.terminerinnerung.org). I focus on getting enterprise customers. My website is hardly visited (so far). I got my first two customers by simply walking into their offices and asking whether they'd be interested. I asked them to pay me for 12 months in advance, so I have earned 5368€ (6565 US$) since I started. I'm hoping that I will earn this again in 2016, when it comes to renew the contract for these first two clients.

My approach is more high-touch - I don't rely on people searching for "Terminerinnerung" ("Appointment reminder") and then coming to my website. I think most doctors don't do that. I go out and talk to them.

I also by default offer to develop integrations into the customer's existing appointment reminder system - because the majority (~66%) of my potential customers here already have some computer system. This means reverse engineering the customer's existing system to be able to continuously export its data. I did this successfully for one of my customers (it was a Java/MySQL application). The other customer I developed a web calendar for.

I have now completed the development for my first two customers (I hadn't completed development when I sold the service to them. I just pretended I had, to make the sale). At the beginning of next year I'll start to acquire more (enterprise) customers.

I'm happy to talk about this via email if anybody's interested. My address is [my first name]@[my last name].io (Michael Herrmann).