DYAMO is a company who strive to empower students to succeed in their studies by setting them up with a mentor that the student can depend on for motivation and help. Furthermore, the students should be able to stay anonymous to the mentors. However, DYAMO does not yet have their own platform to work with. This report will serve as a rundown of how the app, specifically made for DYAMO, was developed. This will later be compared to the initial expectations set out before work on the app started. Finally, there will be some suggestions for what could be further developed in the app for the future. The app serves as a place where an adept (student) can communicate with their mentor by sending texts, files (including images and video) and receive reward-stickers. The responsibility of assigning and managing these conversations lies with the admins and moderators. A school management system is also in place, making it easier to manage and delegate responsibilities within said schools. The app mostly delivered on the final expectations, which exceeded the initial somewhat conservative expectations. The one thing not achieved being that notifications on some devices do not work with the app in the background. / DYAMO stravar efter att mojliggora for studenter att lyckas med sina studier genom att para ihop dem med en mentor som studenten kan lita p_a for motivation och hjalp. Studenten ska dessutom kunna forbli anonym gentemot mentorn, dock har inte DYAMO annu n_agon egen app att utfora detta med. Den har rapporten kommer att agera som en genomg_ang av hur appen, som var speci_kt gjord for DYAMO, blev utvecklad. Detta kommer senare att jamforas med de ursprungliga forvantningarna som sattes innan utvecklingen av appen p_aborjades. Slutligen, kommer det _nnas n_agra forslag p_a vad som skulle kunna vidare jobbas p_a om utvecklingen av appen skulle fortsatta. Appen fungerar s_a att en adept (student) kan kommunicera med en mentor genom att skicka text-meddelanden, _ler (inklusive bilder och videor) och ta emot beloningsklisterm arken. Ansvaret av att tilldela och hantera konversationer faller hos admins och moderatorer. Ett skolhanteringssystem _nns ocks_a p_a plats, for att underlatta hantering och delegering av ansvar inom skolorna. Appen levererade mestadels p_a de slutgiltiga forvantningarna, som i sin tur overskred de ursprungliga n_agot konservativa forvantningarna. Det enda som inte uppfylldes var att noti_kationerna p_a vissa enheter inte fungerar nar appen kors i bakgrunden.

This thesis investigates the automation of forensic analysis in identifying and categorising forensically interestingchanges across dierent versions of chat applications on Android platforms. The focus is primarily on thedierentiation of Android Package Kit (APK) using reverse-engineering techniques to reconstruct the originalsource code and comparing the source code from two dierent versions of the APK. Given the rapid evolutionof chat applications and their frequent updates, it is crucial for forensic investigators to understand thesechanges to maintain the integrity of legal investigations.The research introduces a comprehensive framework leveraging the open-source tools, Ghidra and BinDi, toautomate the decompilation and dierential analysis of APK les. This approach not only makes forensicanalysis less complicated but also ensures that investigators can keep pace with the continuous updates in chatapplications.Tests on the system are conducted on various versions of the Signal chat application. These tests aim todemonstrate the proposed tool in capturing signicant changes between APK versions, such as alterations inlogging mechanisms, database interactions, and the use of encryption and cypher libraries.The results conrm that the integration of Ghidra and BinDi provides a solution for automated forensicanalysis, facilitating the identication of changes and categorisation of methods based on their forensicrelevance. The study shows that the tool can pinpoint modications and structural changes, which are essentialfor forensic investigations.