Model-based testing is critical for mobile applications because it provides a structured approach to testing, which can help ensure that the application meets its functional and non-functional requirements. Mobile applications are becoming increasingly complex, with more features, more devices, and more user scenarios. This complexity makes it difficult to ensure that the application is functioning correctly and that it meets user expectations.

Model-based testing involves creating a model of the system under test and generating test cases from that model. The model can be used to ensure that all possible user scenarios are covered in the testing process, which is critical for mobile applications that have many different user scenarios. The model can also be used to ensure that the application is tested in a structured and repeatable manner, which is important for ensuring that defects are identified and addressed before the application is released.

Model-based testing also allows for early detection of defects, which can save time and money in the long run. By creating a model of the system early in the development process, defects can be identified and addressed before they become more difficult and expensive to fix. This approach can help ensure that the application is delivered on time and within budget.

In addition, model-based testing can help ensure that the application meets user expectations. Mobile applications are designed to be used by a wide range of users, with different devices, platforms, and environments. Model-based testing can help ensure that the application is tested in a way that reflects the diversity of the user base, which is critical for ensuring that the application meets user expectations.

In summary, model-based testing is critical for mobile applications because it provides a structured approach to testing, which can help ensure that the application meets its functional and non-functional requirements, is tested in a structured and repeatable manner, allows for early detection of defects, and ensures that the application meets user expectations.