Ask HN: How to sell an iPhone App?

I have an iphone app that I would like to sell (the whole package, not an individual app in the app store) as my priorities have shifted. Not sure on the best way to go about this. The app has generated strong revenue and has had 50,000+ active users over the last year. The only catch is a yearly data feed cost. Not looking for some huge pay day but dont want to leave the loyal users hanging. Has anyone in the HN community sold an app to another company/individual?