Book of Decisions is a gentle offline decision-advice app for everyday choices. Write a question, add real options, choose your mood and importance level, then open a warm book-inspired answer with a suggested choice, reasoning, another angle, and one small action for today. The app supports saved advice, local search, offline-first use, and the six official United Nations languages. It is not professional, legal, medical, financial, or emergency advice. No dangerous runtime permissions were observed. Android backup may retain local app data depending on the user device settings.