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Android Monetisation AdMob & in-app billing with Kotlin (Udemy.com)

Monetise your apps using AdMob ads, Video Ads, Paid apps, In app purchases, Subscriptions and more

Created by: Catalin Stefan

Last updated February 2026

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What you will learn

  • How to make money from your apps
  • Android Monetisation
  • Google ads
  • Paid and free apps
  • In app billing
  • Freemium model

How it compares

Against the other 166 rated Udemy courses in Android Development on CourseDuck:

  • Rating4.1 out of 5higher than 21% of them
  • Reviews62#145 of 167 by number of reviews
  • Length6.3 hoursshorter than 65% of them
  • Last updatedFebruary 2026more recently than 73% of them

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Course Description

Learn how to make money from your app with this complete course on Android Monetisation.

Most online resources show you one strategy and don't go into practical details about how to build that strategy into a real Android app in Kotlin.

This course will take you step by step and will show you how to implement all the strategies we talk about in a real world example app.


We will learn about:

  • AdMob

  • Banner Ads

  • Interstitial Ads

  • Rewarded Ads

  • How to publish an App to the Google Play Store

  • Free vs Paid Apps

  • Sell digital products

  • Sell subscriptions

The purpose of the course is to give you the knowledge and the confidence to make money from your application.

You have worked hard coming up with an idea for an app, designing it, developing it, maintaining and debugging it, marketing it and building an audience. Now it's time to be rewarded for your effort. This course will teach you how.

The more people make money from their apps, the more awesome apps there are out there, so it's a win for everyone.


Sign up now and let's learn how to monetise your Android App

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Instructor Details

Catalin Stefan

I am an avid learner and teaching enthusiast. I love creating videos and courses that enrich people's lives and help them have a better experience, both personally and professionally. 

I am an expert mobile application developer with over 10 years development experience. I enjoy making courses related to AI, software development and mobile apps, and want to share the knowledge I have acquired.

I create courses based on my professional experience. I hope to teach people skills that help them in their careers, allow them to acquire new skills and improve their personal relationships.

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Reviews

4.1

62 ratings on Udemy

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By PABLO REGO on 2/6/2025

This course is completely obsolete, and the instructor does not answer the questions. You're making a favor to yourself in not buying, it's very disapointing.

By 平田英二 on 10/17/2023

The topic is good and interesting. Very understandable explanation. But the codes are out of date. Many deprecated codes and libraries. Understand updating video will be difficult. Please provide updated codes separately. At least for billing library part which is the main purpose of this course.

By Subhrajit Saha on 12/1/2020

The course was helpful to me. My purpose was to learn about implementation of ad module and in-app purchases. The course cover all of these topics in details with very good presentation. It helps in getting a good understanding about their implementation. But, the topics on building the app need to be updated. Source code of the completed app works, but when I tried to build the app in android studio following the instructions it did not work because there have been a lot of changes since the course was created.

By Daniel S Pereira on 10/23/2020

Eu estou precisando adicionar assinatura nos meus apps, por isso comprei esse curso, pois foi o único que encontrei. Espero que ele atenda as minhas necessidades.

By Jong Ho Baek on 5/12/2020

I think that this course is very useful to creating the free and paid applications.

By Erik Gulbrandsen on 2/23/2020

I am very glad I purchased this course. Gave me a good foundation to move forward with creating revenue in my applications. Thanks.

By TJ Manning on 12/21/2019

While the MVP architecture tutorial was very informative and helpful, I feel like that time spent should have been IAB related.

By Juan Carlos Pazos on 12/15/2019

Good resource, it's clear and explain concepts clearly. You will lear the basics of how to add banners, in app purchases and subscriptions. Thanks

By Ali Ahmed on 7/10/2019

It was helpful but I prefer to put more than one product in tutorial so we can have an idea about implementing the products.

By Oren Mondshein on 6/15/2019

An amazing course on an important and fascinating subject. Beyond the excellent coverage of the course material provides added value for the correct and advanced writing of the Android application. The lecturer is one of the best, the great experience is expressed and gives assurance that the way is the right way. I would love to see the course evolving in the future and covering other topics like native ads. I've been curious about what the next course will be.

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Overall Score : 82 / 100