211+ iOS apps curated and reviewed
The best x secret diary with lock apps on iPhone average 4.5★ across 211+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Securely record your thoughts, memories, and ideas in a private digital journal. Personalize entries with photos, emoticons, and custom fonts. Protect your secrets with password, pattern, or biometric locks.
This app allows you to create a private digital journal with passcode protection. Add photos, stickers, and organize entries into multiple journals. Sync across devices and receive reminders to encourage daily writing.
This app provides a secure and user-friendly platform to record your daily life, emotions, and secrets. It offers features like password protection, mood selection, and photo attachments to help you preserve your memories privately.
This app provides a private digital space to record daily thoughts, emotions, and life events. It offers robust security features like password and biometric locks, alongside tools for organizing, searching, and exporting your entries. Enjoy a customizable and ad-free journaling experience.
Create a secure personal journal to record daily events, thoughts, and secrets. Protect your entries with a password or PIN code and customize the look with different colors and fonts. This app offers a simple, fast, and user-friendly way to document your life.
Record daily activities, thoughts, and memories securely. Organize entries with tags, locations, and folders. Sync across devices and export your data easily. Features include mood tracking, photo attachments, and a calendar view.
This app offers a secure and personalized digital journal for recording daily thoughts, memories, and emotions. Enhance entries with photos, themes, and mood tracking. It's designed to support mental well-being by providing a private space for self-reflection and emotional processing.
This app provides a secure and beautiful space to record your thoughts, plans, and life moments. Protect your entries with a password and enjoy a customizable interface with features like image support and PDF export.
This app offers a natural journaling experience by organizing daily notes on a single page, allowing you to flip through your entries like a physical book. It prioritizes simplicity, security with passcode locks, and seamless iCloud synchronization for easy access across devices.
Securely store and manage private notes, journals, and sensitive information with advanced security features. Protect your data with passcodes, patterns, and even a decoy mode. Organize your thoughts with a calendar view, stickers, and customizable themes.
This app offers a private and flexible journaling experience. Track your mood, dreams, or experiences with customizable entries. Secure your thoughts with a built-in lock system for ultimate privacy.
Securely record your daily thoughts, feelings, and life events with photos and videos. This app acts as a private vault, protecting your personal entries from unauthorized access with a passcode.
Capture your thoughts and memories securely with a private journal. Protect your entries with a passcode, Face ID, or Touch ID. Enjoy a customizable experience with various themes and icons, all stored locally and synced via iCloud.
Securely record your daily thoughts, memories, and secrets in a customizable digital journal. Protect your private entries with a lock and enhance them with photos, emoticons, and personalized designs. Your memories are safely stored and accessible across devices.
A personal diary app that allows you to write daily entries and express your feelings with a variety of emojis. It offers lock protection to keep your thoughts private.
This app provides a secure and private digital space for recording thoughts, memories, and dreams. It encourages self-reflection and personal growth through daily journaling, ensuring all entries are kept confidential.
Securely store private photos, videos, and notes with advanced locking options. Capture new media within the app and manage files via WiFi or cloud services. Offers anti-theft measures and customizable features for enhanced privacy.
Securely record daily thoughts, feelings, and memories with a customizable, password-protected digital journal. Enhance entries with photos, audio, and a mood tracker to understand your emotional journey. Offers prompts and themes for inspiration and organization.
Keep your thoughts, feelings, and memories private with a secure digital journal. This app offers customizable locks, daily reminders, and the ability to add photos and emojis to your entries, ensuring your personal information stays protected.