Best Diary Book Apps

249+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

The best diary book apps on iPhone average 4.6β˜… across 249+ titles β€” we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Diary Book Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Daily Journal: Diary with LockDaily Journal: Diary with LockFree4.8β˜… (5.7K)YesYesNov 2026
2Notebook - Diary & Journal AppNotebook - Diary & Journal AppFree4.7β˜… (14K)YesYesNov 2026
3My Diary - Journal with LockMy Diary - Journal with LockFree4.7β˜… (28K)YesYesNov 2026
4Diary With PasswordDiary With PasswordFree4.7β˜… (27K)NoYesNov 2026
5Mininote - Cute note and diaryMininote - Cute note and diaryFree4.8β˜… (21K)NoYesNov 2026
6PenCake: Minimal Writing AppPenCake: Minimal Writing AppFree4.3β˜… (121)NoYesNov 2026
7My Super Secret Diary NotesMy Super Secret Diary NotesFree4.3β˜… (1.9K)YesYesOct 2026
8DailyLife - Diary, JournalDailyLife - Diary, JournalFree4.8β˜… (246)NoYesOct 2026

Top Picks for Diary Book

Daily Journal: Diary with Lock#1

Daily Journal: Diary with Lock by SimpleInnovation LLC

Your Private Secret Journaling
Editor's Choice
🌟 Lifestyle
4.8😊(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

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

Room to Improve

  • πŸ”‘ Limited free features, many premium options
  • πŸ–ΌοΈ Inability to use own photos as backgrounds
  • πŸ•°οΈ No reminders to write daily entries
Notebook - Diary & Journal App#2

Notebook - Diary & Journal App by Koji Ito

Daily Notes, Lock & iCloud
Strong Contender
πŸ“Š Productivity
4.7😊(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

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

Room to Improve

  • πŸ› Occasional crashes or glitches
  • 🚫 Unable to insert photos or attachments
  • 🚫 Limited formatting options
  • 🚫 No cloud sync or backup
  • 🚫 Not compatible with iPad
My Diary - Journal with Lock#3

My Diary - Journal with Lock by BetterApp Tech Co., Limited

Journaling Diary with password
Worth Considering
🌟 Lifestyle
4.7😊(28K ratings)
FreeAdsIn-App Purchases
My Diary - Journal with Lock screenshot 1
My Diary - Journal with Lock screenshot 2
My Diary - Journal with Lock screenshot 3
My Diary - Journal with Lock screenshot 4
My Diary - Journal with Lock screenshot 5
My Diary - Journal with Lock screenshot 6

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.

What We Love

  • πŸ”’ Secure with password, fingerprint, and security question options
  • πŸ“ Easy to write and express thoughts
  • 🎨 Customizable with themes, stickers, and photos
  • πŸ—“οΈ Helpful for tracking moods and daily activities

Room to Improve

  • πŸ’° Many features locked behind premium paywall
  • πŸ” Limited free theme and sticker options
  • πŸ› Issues with formatting, text editing, and photo placement
  • πŸ”„ Requires restoring purchases frequently

More Diary Book apps to explore

FAQ about Diary Book

What are the best diary book apps for iPhone?
Daily Journal: Diary with Lock tops our diary book apps ranking as of October 2026, with a 4.8-star average from 5.7K App Store ratings, and it's free to download.
Yes β€” 20 of the top diary book apps we rank are free to download, including Daily Journal: Diary with Lock and Notebook - Diary & Journal App.
Daily Journal: Diary with Lock shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ diary book apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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