Internal app sharing is crucial for ensuring the quality and functionality of applications before their public release, as Microsoft's App Center discontinues. Developers face challenges such as complex distribution, technical hurdles for testers, and iOS device registration. Streamlining these processes requires targeted solutions like Bitrise's Public Install Page, which facilitates effortless distribution and testing with features like automated build distribution, streamlined communication, broad testing pool, flexible accessibility control, and detailed build information. Firebase app distribution also offers a solution by integrating directly with development workflows to automatically share new builds immediately after compilation, providing real-time feedback tools. Apple's TestFlight and Google Play's testing tracks offer native solutions for beta testing, facilitating organized testing environments and simplified tester management. The right internal app sharing solution can dramatically improve the efficiency of the testing phase, leading to better app quality and a smoother development process.