Add a single payment method

Am I the only one who's tired of absolutely everything being subscription-based nowadays, even apps? I simply want to use the app with Android Auto without having to pay for it every single month. I don't mind paying, and I understand that a subscription model might be ideal for some people.

I absolutely love your app, and I'd be more than willing to pay a one-time fee to use it, regardless of how much it costs. I just don't want to have to keep track of a monthly subscription when there might be months when I don't even use your app. Having to constantly manage whether to cancel or renew the subscription is exactly what puts me off subscribing in the first place.

Since this feature is paid, at the very least, please give us the option to make a one-time payment for unlimited access.