My Diary with password & lock positions itself as a comprehensive personal journaling solution for iOS users seeking both functionality and privacy. Developed by 4TH FLOOR APPS SIA, the application combines traditional diary-keeping with modern digital features, offering users a secure environment for personal reflection and emotional tracking. The application's core functionality centers around creating and organizing journal entries with multiple categorization options. Users can tag entries by emotional state, thematic categories, or custom labels, enabling sophisticated filtering and retrospective analysis. The password protection system employs AES-256 encryption, providing enterprise-grade security for personal content. Additional features include mood trend visualization through calendar views and statistical breakdowns, allowing users to identify emotional patterns over time. The user interface employs a minimalist design philosophy with intuitive navigation and customizable themes. The writing experience features distraction-free composition modes with adjustable text formatting options. Real-world usage patterns indicate the app serves both daily journaling routines and sporadic emotional logging, with push notification reminders supporting consistent engagement. The search functionality enables quick retrieval of past entries using keywords or date ranges. With no user reviews available for analysis, the application's 4.67722 rating suggests generally positive reception, though specific user experiences cannot be verified. The absence of documented feedback necessitates reliance on feature analysis rather than community validation for this assessment. The application demonstrates strengths in security implementation and organizational features, though the lack of cloud synchronization options may limit accessibility across devices. Ideal for privacy-conscious individuals maintaining regular journaling habits, the app serves particularly well for mood tracking purposes and structured personal reflection without requiring social or sharing features.