In the software development industry, there's a growing emphasis on delivering features and updates quickly to customers at the lowest time-to-market. However, this can come at the cost of internal codebase quality, which is essential for long-term reliability and maintainability. Test-driven development (TDD) offers a solution by providing a disciplined method to address internal quality and train developers to design better software. TDD involves writing tests before coding, then writing code to make the tests pass, with the goal of improving code quality, reducing maintenance costs, and increasing developer confidence. While TDD has benefits, such as improved code quality and reduced debugging efforts, it also has trade-offs, including slower development times and increased maintenance overhead. To get started with TDD for mobile development, developers can use unit testing frameworks and libraries supported by their language or framework of choice, and integrate tests into the CI/CD pipeline to automate the process and get feedback from tests faster.