Advertisement on my app uploaded on play store

[AC Question]

How can I display advertisements on my application already uploaded on play store. Just to earn more revenue. Assuming my users are increasing day by day

As I noticed many type of advertisements are coming in some other apps obviously these apps are earning some amount from them.

First one, is pop up full screen ad. (I think they pay heavy amount)
Second, some are small ads running in bottom or above.

Even I notices Skype is giving ad of Airtel. Now in such case Airtel has paid to skype or to google. Totally confused.

Please guide someone.

 

[TiltedCode]

If you go to the website that's related to the program you used to design your app, there should be forum threads related to adding advertising to apps and which produce the best revenue. There may even be tutorials to guide you through the process. Just googling "how do I add advertising to a _______ app" should produce links to relevant site as well as YouTube videos.