[Eavolution]

Such as what? I found it a very fair deal, you can have functionality for your area for free, which will likely be good enough for 70%+ of people, but if you want larger regions you have to pay. It seems to me a totally fair and transparent pricing structure, without resorting to filling the app with ads.

The people who need the paid portion of the app are also likely enthusiasts, and in that light the pricing seems fair too.