I've been using the iFly 720 for a couple years now. $109/yr for the IFR/VFR updates subscription, and $69/yr for the VFR only subscription. Updates also include new features to the operating system. Only nit is no internal battery, it's sold separately. No issue to me as I can plug it into the plane's 12v power.
https://ifly.adventurepilot.com/HOME.aspx