A free program for Android, by Medevio.

How does Medevio work?

First, choose a doctor. If the doctor is in the same health network as you, you can easily find him. You will find his contact details, his phone number, and an opening hour.

Then, pick the type of consultation you need: general, gynecology, dermatology, pediatrics, or urgent one. You can even ask for a prescription or for a hospital visit. 

After that, pick a date and time.

Now you will be connected with your doctor. You can send him a message and start the consultation. You can ask him questions, and he will answer you.