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Best Diary With A Lock Apps

249+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Finding the right diary with a lock apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Diary With A Lock Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Secret Diary With LockSecret Diary With LockFree4.4★ (736)YesYesAug 2026
2Diary With PasswordDiary With PasswordFree4.7★ (27K)NoYesAug 2026
3Diary with Lock - iDiaryDiary with Lock - iDiaryFree4.2★ (18)NoYesMay 2026
4Secret Diary With PasscodeSecret Diary With PasscodeFree4.6★ (8.1K)YesNoAug 2026
5Daily Journal: Diary with LockDaily Journal: Diary with LockFree4.8★ (5.5K)YesYesAug 2026
6Diary with lockDiary with lockFree4.3★ (1.2K)NoYesAug 2026
7Diary - Journal with passwordDiary - Journal with passwordFree4.5★ (1.7K)YesNoAug 2026
8My Diary With LockMy Diary With LockFree4.7★ (1.6K)NoYesAug 2026

Top Picks for Diary With A Lock

Secret Diary With Lock#1

Secret Diary With Lock by Pravin Gondaliya

Secret Journal With Password
Editor's Choice
🌟 Lifestyle
4.4😐(736 ratings)
FreeAdsIn-App Purchases
Secret Diary With Lock screenshot 1
Secret Diary With Lock screenshot 2
Secret Diary With Lock screenshot 3
Secret Diary With Lock screenshot 4
Secret Diary With Lock screenshot 5
Secret Diary With Lock screenshot 6

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.

What We Love

  • 🔒 Secure diary with password/fingerprint protection
  • 📝 Ability to write and express feelings
  • 🎨 Customization options for diary appearance
  • 🔐 Privacy and keeping secrets from others

Room to Improve

  • 💰 Many features locked behind paywall
  • 🌐 Ads and constant prompts to upgrade
  • 🕰️ Incorrect date/time display
Diary With Password#2

Diary With Password by 帆 杨

No Ads Journal Diary Notebook
Strong Contender
📊 Productivity
4.7😊(27K ratings)
FreeIn-App Purchases
Diary With Password screenshot 1
Diary With Password screenshot 2
Diary With Password screenshot 3
Diary With Password screenshot 4
Diary With Password screenshot 5
Diary With Password screenshot 6

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.

What We Love

  • 💻 Simple and easy to use
  • 🔒 Password protection
  • 📝 Customizable fonts and layout
  • ⏱️ Time stamp feature

Room to Improve

  • 🔍 Difficulty finding/accessing past entries
  • 🖼️ No image/media support
  • 🔄 Lack of syncing across devices
Diary with Lock - iDiary#3

Diary with Lock - iDiary by Heyou Co., Ltd.

Personal Encrypted Journal
Worth Considering
🌟 Lifestyle
4.2(18 ratings)
FreeIn-App Purchases
Diary with Lock - iDiary screenshot 1
Diary with Lock - iDiary screenshot 2
Diary with Lock - iDiary screenshot 3
Diary with Lock - iDiary screenshot 4

Capture and cherish life's moments in a secure, beautifully designed digital journal. Add text, photos, and videos, track your mood and weather, and protect your entries with a passcode. Back up your memories to iCloud and export them as PDFs.

More Diary With A Lock apps to explore

4
Secret Diary With Passcode
Secret Diary With Passcode
Secret Diary With Passcode
Secret diary
Free

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.

Password protectionAdd photos to entriesSelect moods for entries
🌟 Lifestyle
(8.1K)
free with in-app purchases
5
Daily Journal: Diary with Lock
Daily Journal: Diary with Lock
Daily Journal: Diary with Lock
Your Private Secret Journaling
Free

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.

Password, fingerprint, and face ID securityAdd photos to journal entriesMood and emotion tracking
🌟 Lifestyle
(5.5K)
free with in-app purchases
6
Diary with lock
Diary with lock
Diary with lock
Colorful Diary, Journal, Note
Free

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.

Password & PIN code protectionCustomizable background colorsChangeable font styles
🌟 Lifestyle
(1.2K)
free with in-app purchases
7
Diary - Journal with password
Diary - Journal with password
Diary - Journal with password
Beautiful diary with password
Free

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.

Password protection with PINAdd/edit/remove imagesSearch functionality
🌟 Lifestyle
(1.7K)
free with in-app purchases
8
My Diary With Lock
My Diary With Lock
My Diary With Lock
Daily Journal, Notes, Memo
Free

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.

Password and Face ID protectionMood tracking with emotion iconsQuick notes with photos and emojis
🌟 Lifestyle
(1.6K)
free with in-app purchases
9
Diamond Diary Notes With Lock
Diamond Diary Notes With Lock
Diamond Diary Notes With Lock
Secret Journal with Password
Free

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.

Password/Biometric LockAdd Photos & EmoticonsCustomizable Fonts & Backgrounds
📊 Productivity
(8.6K)
free with in-app purchases
10
Secret Diary : Private Life
Secret Diary : Private Life
Secret Diary : Private Life
Private Diary For Girls
Free

Securely record your daily thoughts, feelings, and life events. Express yourself with text, pictures, music, and decorative stickers to capture your mood and creativity.

Record daily thoughtsCapture life happeningsAdd pictures and text
🌟 Lifestyle
(96)
free with in-app purchases
11
My Diary : Diary With Lock
My Diary : Diary With Lock
My Diary : Diary With Lock
Journaling Diary with Password
Free

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.

Password, fingerprint, and face ID protectionAdd photos, audio clips, and sketchesCustomizable backgrounds, stickers, and fonts
🌟 Lifestyle
(44)
free with in-app purchases
12
Diamond Glitter Diary
Diamond Glitter Diary
Diamond Glitter Diary
With lock protection
Free

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.

Daily journalingLock protectionEmoji support
📊 Productivity
(1.3K)
free
13
Diary & Journal with Lock
Diary & Journal with Lock
Diary & Journal with Lock
Simple diary with password
Free
🌟 Lifestyle
(0)
14
Diary with Lock: Diary Journal
Diary with Lock: Diary Journal
Diary with Lock: Diary Journal
Daily Diary & Mood Tracker
Free

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.

Password and Face ID protectionMultimedia entries (photos, audio)Mood tracking calendar
🌟 Lifestyle
(901)
free
15
Diary with Lock- Daily Journal
Diary with Lock- Daily Journal
Diary with Lock- Daily Journal
Diary with Lock: Daily Journal
Free

Securely record your thoughts, feelings, and memories with a password or facial ID lock. Features auto-save, auto-sync to the cloud, and offline journaling. Personalize entries with various tools and export them as PDFs with a premium subscription.

Password and facial ID lockAuto-save and auto-syncCloud backup for data recovery
🔧 Utilities
(2)
freemium
16
My Diary - Journal with Lock
My Diary - Journal with Lock
My Diary - Journal with Lock
Journaling Diary with password
Free

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.

Password-protected diaryAdd photos and drawingsCustomizable themes and backgrounds
🌟 Lifestyle
(28K)
free with in-app purchases
17
Notebook - Diary & Journal App
Notebook - Diary & Journal App
Notebook - Diary & Journal App
A diary that flips like a book
Free

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.

Realistic page-turning effectOne page per day organizationiCloud sync and backup
📊 Productivity
(14K)
free with in-app purchases
18
My Private Diary For Girls
My Private Diary For Girls
My Private Diary For Girls
Secret Photo, Video, & Journal
Free

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.

Secure passcode protectionRecord thoughts, photos, and videosOrganize and back-up entries
🌐 Social Networking
(692)
free with in-app purchases
19
My Diary with password & lock
My Diary with password & lock
My Diary with password & lock
Daily notes & private Journal
Free

This app provides a private space to record thoughts, emotions, and activities. It features mood tracking, photo attachments, and customizable reminders to encourage self-reflection. Secure your entries with password or biometric protection and gain insights into your life patterns.

Write and organize diary entriesVisual mood trackerAdd photos and attachments
🌟 Lifestyle
(594)
free with in-app purchases
20
Secret Diary with Locks
Secret Diary with Locks
Secret Diary with Locks
Private Journal with Password
Free
$0.99 | 100% OFF

Securely record your thoughts, memories, and personal moments with this private journal app. Protect your entries with a password, PIN, or biometric authentication. All data is stored locally and encrypted for complete privacy.

Password, PIN, or biometric unlockAES 256-bit encryptionOffline local storage
🔧 Utilities
(0)
free with in-app purchases

Looking for something similar to diary with a lock?

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FAQ about Diary With A Lock

What are the best diary with a lock apps for iPhone?
Secret Diary With Lock tops our diary with a lock apps ranking as of August 2026, with a 4.4-star average from 736 App Store ratings, and it's free to download.
Yes — 20 of the top diary with a lock apps we rank are free to download, including Secret Diary With Lock and Diary With Password.
Secret Diary With Lock shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ diary with a lock apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Secret Diary With Lock is a digital journaling app designed to keep your personal thoughts, feelings, memories, and plans private. It allows you to create unlimited entries, add photos and emojis, and secure your journal with various lock types.
Key features include multiple lock options (PIN, pattern, safe), the ability to make unlimited entries, add photos and mood emojis to entries, set writing reminders, and customize the diary's appearance with different wallpapers and fonts. It also offers data backup and restore functionality.