Frida is an open-source dynamic instrumentation toolkit that enables developers and security professionals to inject code into applications at runtime for monitoring and manipulation purposes, making it valuable for security assessments, debugging, and software stability improvements. Its origins trace back to the collaborative efforts of Ole André V. Ravnås and Håvard Sørbø, aiming to transform manual reverse engineering into a more efficient process. Since its initial release in 2014, Frida has been widely adopted for application security, penetration testing, reverse engineering, and malware analysis, due to its capabilities of intercepting and altering function calls, debugging, and tracing in real-time. Operating on a client-server architecture, Frida supports a variety of platforms and architectures, and offers bindings for multiple programming languages, enhancing its versatility. Despite its utility, Frida presents challenges such as platform compatibility issues, script complexity, performance overhead, and the need for rooting or jailbreaking on mobile devices, along with ethical considerations surrounding its potential misuse. As Frida becomes more popular, applications are increasingly employing anti-Frida techniques to detect and prevent unauthorized instrumentation, while alternative tools like Xposed Framework, Drozer, Cycript, GDB, IDA Pro, and Wireshark offer complementary functionalities for dynamic and static analysis.