There are many tools for reverse engineering data in smart phones, especially Android phones. Some useful Android tools are Android Network Toolkit (ANTI), DroidBox, AVD Clone, and Smart Pentest Framework (SPF). The tools covered can help retrieve important information and facilitate criminal investigations. The Android Network Toolkit is a very useful and effective application tool. According to the Hackers Online Club website, “This application is able to map your network, scan for vulnerable devices or configuration issues. Intended for use by the home security enthusiast and the professional penetration tester, ANTI provides many other useful features. " Here are some of the features of Android Network Toolkit (ANTI): It provides easier connection to visual sniffing and opens ports. Visual sniffing generally refers to fetching cookies and URLs. The ANTI app also allows the user to perform MiTM attacks, allows the user to exploit the server and client sides MiTM is normally used in cryptography and computer security MiTM basically listens at the gates. with a password cracker that determines the security level of a password ANTI can also replace an image in denial of service attacks and demos. All these features are part of the Android Network Toolkit (ANTI). Another useful application is the DroidBox This purpose of DroidBox is made from the dynamic analysis of other Android applications. The application generates many useful results. These are the results after the analysis is completed: it shows the results. incoming and outgoing network data. It also displays the hashes of the parsed package, the application performs file reading and writing operations. It provides information...... middle of paper ...... will also be integrated with existing tools. Some of these tools are SET, Metasploit and much more. Conclusion Reverse engineering of smartphone data can have a positive and negative effect. Many of today's applications were created through reverse data engineering. A positive effect is that the application developer can use data reverse engineering to create a similar or new application from an existing application. A negative effect would be the creation of an application used to retrieve certain data from an individual or an application that attacks other devices. An application can also be created to support criminal investigations and other forensic-related topics. There are many forensic tool apps for all types of devices. Overall, an app created to attack other devices isn't always bad, it just depends on who is using the app..