Keep your thoughts and memories private with a password-protected digital journal. Add moods, titles, descriptions, and images to your daily entries. Customize themes and set reminders to encourage regular writing.






239+ iOS apps curated and reviewed
Every iPhone needs a few good secret diary daily with lock apps. We benchmark 239+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 3.0★ (10) | Yes | No | Aug 2026 | |
| 2 | Free | 4.4★ (736) | Yes | Yes | Aug 2026 | |
| 3 | Free | 4.6★ (8.1K) | Yes | No | Aug 2026 | |
| 4 | Free | 4.8★ (5.5K) | Yes | Yes | Aug 2026 | |
| 5 | Free | 4.3★ (1.2K) | No | Yes | Aug 2026 | |
| 6 | Free | 4.4★ (8.6K) | Yes | Yes | Aug 2026 | |
| 7 | Free | 4.2★ (44) | Yes | Yes | Aug 2026 | |
| 8 | Free | 4.7★ (692) | Yes | Yes | Aug 2026 |






Keep your thoughts and memories private with a password-protected digital journal. Add moods, titles, descriptions, and images to your daily entries. Customize themes and set reminders to encourage regular writing.






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.





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 serves as a private digital journal to record daily experiences, emotions, and memories. Secure your entries with password, fingerprint, or face ID, and enhance them with photos. Track your moods and use built-in reminders to cultivate a consistent journaling habit.


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.


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.


Safely store your thoughts, memories, and daily moments in a private, password-protected journal. Personalize your entries with photos, voice notes, and custom backgrounds. Track your mood over time to gain self-understanding and promote mental well-being.


This app allows you to capture and preserve life's moments with rich detail. Protect your thoughts with biometric or passcode locks, personalize your entries with various media, and sync across devices. It's designed to make journaling an enjoyable and secure experience.


This app provides a secure and private space to record daily thoughts, moods, and memories. It offers password protection, mood tracking with emotion icons, and a calendar view to revisit past entries. Customize your journal with various artistic styles.


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.


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.


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.


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.


Securely record your thoughts, daily events, and journeys with this private diary app. It offers robust security features like Face ID, Touch ID, or passcode lock, and allows for extensive personalization with themes, fonts, and backgrounds. All entries are stored locally for maximum privacy.


This app offers a private digital notebook for journaling, with customizable interfaces and dynamic effects. Secure your entries with a password and receive daily reminders to write. Add photos, text, and choose from various fonts and background stationery colors to make your entries vibrant.


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. This app allows you to add photos and track your moods, all protected by a passcode. Personalize your journal with themes and easily search past entries.


Record your daily thoughts, memories, and events through text, audio, or video entries. Secure your private journal with a PIN lock to keep your personal experiences safe and confidential.


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.


This app allows you to privately record your daily thoughts and experiences. Customize your entries with photos and weather icons, and secure your journal with a password or fingerprint. It's designed for simple, offline use to capture life's details.