When it comes to ongoing app maintenance, updates, and support after the initial development phase in custom mobile app development, there are several important considerations. First and foremost, choosing a reliable mobile app development company in US is crucial to ensure timely and efficient support. They should offer comprehensive maintenance plans to address potential bugs, security vulnerabilities, and compatibility issues. Regular updates are essential to incorporate new features, improve user experience, and stay up-to-date with evolving mobile platforms. Additionally, effective communication channels between the development team and clients are vital to facilitate seamless support and address any user concerns promptly.