On: RunPee – Because movie theaters don't have pause b...

[foreigner]

I use this app on Android. It's awesome. My only criticism is it's ad-supported. I would gladly pay lots of money for am ad-free version of this app.

[DanBC → foreigner]

How easy is it for devs to release two versions of an app on the various app places?

One is free but ad supported; the other has a single upfront cost and no ads.

[voltagex_ → DanBC]

I've seen it done three ways on Android:

* A link in the app to an "Unlocker" which is detected by the main app and removes the ads

* An IAP that removes the ads

* A pro vs free version of the app.

I can't answer your question directly but I know that the IAP is a few lines of code in Google's billing APIs.

[foreigner → DanBC]

There's plenty of apps that work that way.