However, I can provide you with some general information that might help answer your question.

Firstly, it's important to note that the availability of specific books or resources in an app can vary depending on several factors, such as the app's purpose, target audience, and licensing agreements. Without specific information about the app you are referring to, it is difficult to provide a precise answer. Nevertheless, I can offer some possible explanations as to why the app you mentioned may not include the book "Bal Mahabharat" for Class 7 Hindi.

1. App Content Selection:
The creators of the app might have chosen to include other books or resources that they believe are more relevant or suitable for the target audience. Class 7 Hindi curriculum usually covers a wide range of topics, including literature, grammar, and composition. The app developers might have focused on providing a comprehensive collection of resources that cover these areas.

2. Licensing and Copyright:
The inclusion of specific books in an app may depend on licensing agreements and copyright permissions. Obtaining the necessary permissions to include a particular book can be a complex process. It's possible that the creators of the app were unable to secure the rights to include "Bal Mahabharat" for Class 7 Hindi in their collection.

3. App Updates and Expansions:
Apps are often updated and expanded over time to provide new features and content. If the app you are using is relatively new, it's possible that the book "Bal Mahabharat" for Class 7 Hindi might be added in a future update. App developers often take user feedback into consideration when updating their content, so you can reach out to them and suggest the inclusion of the specific book.

4. External Resources:
While the app may not include "Bal Mahabharat" for Class 7 Hindi, there are other platforms and websites, such as EduRev, that offer a wide range of educational resources, including books, study materials, and practice questions. These platforms often provide a diverse collection of resources to cater to the needs of students at different levels.

It's important to explore various resources and platforms to find the most suitable materials for your studies.

Yes,you are correct.