Best Locked Journal Diary Apps

244+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated October 2026

From beginner-friendly picks to power-user tools, our locked journal diary list covers 244+ iPhone apps updated through October 2026. Compare ratings, prices, and screenshots in one place.

Compare top Locked Journal Diary Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Notebook - Diary & Journal AppNotebook - Diary & Journal AppFree4.7โ˜… (14K)YesYesNov 2026
2Secret diary : Locked journalSecret diary : Locked journalFree4.3โ˜… (12)YesYesOct 2026
3Daily Journal: Diary with LockDaily Journal: Diary with LockFree4.8โ˜… (5.7K)YesYesNov 2026
4Personal Diary (Journal) AppPersonal Diary (Journal) AppFree4.4โ˜… (106)NoYesOct 2026
5Diamond Diary Notes With LockDiamond Diary Notes With LockFree4.4โ˜… (8.9K)YesYesNov 2026
6Secret Diary with Lock - MuseSecret Diary with Lock - MuseFree4.8โ˜… (734)YesYesNov 2026
7Secret Diary With PasscodeSecret Diary With PasscodeFree4.6โ˜… (8.2K)YesNoNov 2026
8Journal X: My Diary with LockJournal X: My Diary with LockFree4.5โ˜… (1.9K)NoYesNov 2026

Top Picks for Locked Journal Diary

Notebook - Diary & Journal App#1

Notebook - Diary & Journal App by Koji Ito

Daily Notes, Lock & iCloud
Editor's Choice
๐Ÿ“Š Productivity
4.7๐Ÿ˜Š(14K ratings)
FreeAdsIn-App Purchases
Notebook - Diary & Journal App screenshot 1
Notebook - Diary & Journal App screenshot 2
Notebook - Diary & Journal App screenshot 3
Notebook - Diary & Journal App screenshot 4
Notebook - Diary & Journal App screenshot 5

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.

What We Love

  • ๐Ÿ‘ Simple and easy to use
  • ๐Ÿ”’ Password protection
  • ๐Ÿ’ก Convenient for journaling and note-taking
  • ๐Ÿš€ Smooth and responsive
  • ๐Ÿ‘ Organized by date

Room to Improve

  • ๐Ÿ› Occasional crashes or glitches
  • ๐Ÿšซ Unable to insert photos or attachments
  • ๐Ÿšซ Limited formatting options
  • ๐Ÿšซ No cloud sync or backup
  • ๐Ÿšซ Not compatible with iPad
Secret diary : Locked journal#2

Secret diary : Locked journal by Chandan Kumar

Private journal & mood tracker
Strong Contender
๐ŸŒŸ Lifestyle
4.3(12 ratings)
FreeAdsIn-App Purchases
Secret diary : Locked journal screenshot 1
Secret diary : Locked journal screenshot 2
Secret diary : Locked journal screenshot 3
Secret diary : Locked journal screenshot 4
Secret diary : Locked journal screenshot 5
Secret diary : Locked journal screenshot 6

This app provides a secure and customizable space for journaling, mood tracking, and memory keeping. Enhance your entries with photos, stickers, and personalized themes. Organize your thoughts with tags and find them easily with smart search.

Daily Journal: Diary with Lock#3

Daily Journal: Diary with Lock by SimpleInnovation LLC

Your Private Secret Journaling
Worth Considering
๐ŸŒŸ Lifestyle
4.8๐Ÿ˜Š(5.7K ratings)
FreeAdsIn-App Purchases
Daily Journal: Diary with Lock screenshot 1
Daily Journal: Diary with Lock screenshot 2
Daily Journal: Diary with Lock screenshot 3
Daily Journal: Diary with Lock screenshot 4
Daily Journal: Diary with Lock screenshot 5
Daily Journal: Diary with Lock screenshot 6

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.

What We Love

  • ๐Ÿ”’ Secure with password and biometric lock
  • ๐Ÿ“ Allows easy journaling and expression of feelings
  • ๐ŸŽจ Customizable themes and backgrounds
  • ๐Ÿ“Š Mood tracking and insights
  • ๐Ÿ†“ Free to use with no ads or subscriptions

Room to Improve

  • ๐Ÿ”‘ Limited free features, many premium options
  • ๐Ÿ–ผ๏ธ Inability to use own photos as backgrounds
  • ๐Ÿ•ฐ๏ธ No reminders to write daily entries

More Locked Journal Diary apps to explore

FAQ about Locked Journal Diary

What are the best locked journal diary apps for iPhone?
Notebook - Diary & Journal App tops our locked journal diary apps ranking as of October 2026, with a 4.7-star average from 14K App Store ratings, and it's free to download.
Yes โ€” 20 of the top locked journal diary apps we rank are free to download, including Notebook - Diary & Journal App and Secret diary : Locked journal.
Notebook - Diary & Journal App shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 244+ locked journal diary apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.