Hybrid Assistant has always been a free product.
From time to time, we received inquiries from people who were asking if they can contribute to its development somehow.
We always refused to charge any money for it.
Now this has changed: if you, as a satisfied Hybrid Assistant user, think this app has contributed somewhat to improve your driving and reduce your emissions, think about making a donation, the amount you think it's worth, to an hospital of your own choosing.
The Hybrid Assistant Development Team