Hi Truman,
If each app is relatively short or simple, one option would be to combine a group of them into one app. Maybe if ten of the apps are about a specific topic, you could have an app that has something like a library of those ten books, which would actually all be in the same app. This can also make the app feel more substantial and layered for the end user and worth the price.

The $299 yearly publishing membership does cover one app per year, and the $99 per additional app is for the process of having the additional apps submitted to the app marketplaces. If you use your own developer account instead of ours and submit your InteractBuilder apps yourself, the additional fee does not apply.

Just to clarify since you used the terms "e-book" as well as "app," the main difference between the two is that an app can have many more features like animation, sound effects, video, drawing, and more, while an e-book is usually simply for reading on an e-reader or other device. Some enhanced e-books have more options like simple animations and audio, but apps usually represent a more flexible range of functionality and interactivity. InteractBuilder creates apps and allows for many interactive options.

I hope this helps!
Inna

There is no current way to erase references to audio files at this time.

Hi Charmaine, for this situation you need a global counter on the first page of your app. Tapping the Read me On will make this Counter Value 1 ( by using a CounterSet behavior) and  tapping the Read me Off will make this Counter Value to 0 (by using a CounterSet behavior).
For every narration file that you have, on it's PlayAudio behavior you will need to set a condition: If the App counter <You global counter name> Value is 1.

I assume you are running on Windows.  Reboot your machine and start the InteractBuilder again, that should resolve your issues.

Hi! When you say that you had two elements with an action set of four, do you mean that the two elements had the same four action sets? Was the unnecessary action set still there when you restarted the program? [Inna]
We were able to recreate this error and we are working to fix this. Thank you for poiting this out.

Hi Robert,

The layout is the same for the free membership and the premium membership. What you have is InteractBuilder 4, while the webinar is showing InteractBuilder 3. The current version has many improvements and a few changes in the interface.

To create a play button, you can add an image or shape to the page and add an action set that makes a certain audio file play.
Here's some info from our user guide on how to add an element: Adding a New Element.
Here, you'll find information about adding an action set to an element: Creating a New Action Set.
To play audio, you can use the PlayAudio behavior (combined with the Tap interaction).

I hope this helps!
Inna