User Testing for a book app

We have a mobile app (audiobooks and ebooks). We want to check how the new users' interaction occurring when they use one of our features.

To conduct the test, we need to make a video call for about 20 minutes where you'll need to share your screen using Skype.
* Sharing the screen is needed because we want to see how you are using and interacting with the app.
* Sharing the camera is needed to see your natural facial reaction.

The session will be recorded for analysis purposes and will not be shared with anyone outside of the company.
After using the app, we will have some follow up questions regarding the experience.

Our budget is $10.

It is a fun and quick task and no high technical prior experience is required. If you're interested in audiobooks that will be plus merit - mention that in your proposal.

Hight internet speed is required for this task.
Tech requirement from Skype: Screen sharing is supported on Android 6.0 and above. For iPhone iOS 12 and above