Remove Ads + Upgrade Radar

I'm now realizing that some may not know you can upgrade the radar to 5 hours by subscribing to a "Remove Ads" subscription. We should probably rename it to Remove Ads + Upgrade Radar.

Additionally, some have mentioned they don't mind the ads because seeing them provides us with revenue.

While we appreciate that thought, just to be clear, the revenue we receive from a subscription is drastically higher than what we receive from you seeing a small ad banner at the bottom of the app. Without subscriptions, ad revenue would not even come close to paying for data, servers, development, etc.

A huge thank you to all of those who have subscribed! You're the reason we're barely breaking even at this early and critical stage. 

Adam