It's simple:
1) Build your app
2) Publish your apps to app store(s)
3) Pay the setup fee
4) Get paid royalties

With AuthorMob, building and selling mobile apps is easy and efficient.
No programming or design experience is required to build a content-based app that contains embedded ebooks,
Start by opening a free account and log into the app builder.
Overview the AuthorMob App Authoring Took
1) Build your app
Upload your app's content to the App Builder
After a few minutes of uploading your files, you will be able to preview your app in your browser.
2) Publish your apps to app store(s)
When you decide that your app is ready to go live, just click on "publish" and AuthorMob engineers handle the entire process of submitting your app to the Apple App Store, and soon, the Google Android Marketplace, and the Amazon.com Android App Marketplace.
Getting apps approved and available for sale can take days or weeks, as it's dependent on the policies of each app store, so plan timing accordingly.
3) Pay the Set up fee
In order to publish your app on an app store, you must previously pay the app setup fee, see the pricing page for more info. Only once you initiate the publishing process to an App Store do you pay the set up fee.
High volume publishers may qualify for the discounted Best Sellers Program. Please see the pricing page for full details.
4) Get Paid Royalties
AuthorMob sells your apps and pays you royalties as a percentage of the retail price of all sales. (Most app stores retain 30%, and AuthorMob 20%) Payment is net 60 days. Read more about royalties.
5) Grow Sales
AuthorMob has developed many ways to market your app and grow sales. Please see more about promoting your app here.