Make money from a free app

[monitoronly]

I would skip adds, users might find it annoying, unless you limit them or target them based on peronal interest.

 

[hitcode]

Free application can advertise any apps

 

[Artcue]

I think you can only make money with ads, if you are in the top 25 in US or other really big markets and are able to stay there for long.....

 

[supersuraccoon]

Use the iAd, that will help you I am sure.