Best Lock Apps Free Diarys

246+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated October 2026

Out of 246+ lock apps free diarys on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Lock Apps Free Diarys (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Notebook - Diary & Journal AppNotebook - Diary & Journal AppFree4.7★ (14K)YesYesNov 2026
2My Diary With LockMy Diary With LockFree4.7★ (2K)NoYesOct 2026
3Secret Diary With PasscodeSecret Diary With PasscodeFree4.6★ (8.2K)YesNoOct 2026
4Daily Journal: Diary with LockDaily Journal: Diary with LockFree4.8★ (5.7K)YesYesNov 2026
5Diary with Lock: Diary JournalDiary with Lock: Diary JournalFree4.9★ (1K)NoNoOct 2026
6My Diary : Diary With LockMy Diary : Diary With LockFree4.2★ (59)YesYesOct 2026
7Secret Diary with Lock - MuseSecret Diary with Lock - MuseFree4.8★ (734)YesYesNov 2026
8Note Lock~Lock your Tales SafeNote Lock~Lock your Tales SafeFree4.2★ (2.8K)NoYesNov 2026

Top Picks for Lock Apps Free Diarys

Notebook - Diary & Journal App#1

Notebook - Diary & Journal App by Koji Ito

Daily Notes, Lock & iCloud
Editor's Choice
📊 Productivity
4.7😊(14K ratings)
FreeAdsIn-App Purchases
Notebook - Diary & Journal App screenshot 1
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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

  • 👍 Simple and easy to use
  • 🔒 Password protection
  • 💡 Convenient for journaling and note-taking
  • 🚀 Smooth and responsive
  • 👍 Organized by date

Room to Improve

  • 🐛 Occasional crashes or glitches
  • 🚫 Unable to insert photos or attachments
  • 🚫 Limited formatting options
  • 🚫 No cloud sync or backup
  • 🚫 Not compatible with iPad
My Diary With Lock#2

My Diary With Lock by MEETFIRE LIMITED

Daily Journal, Notes, Memo
Strong Contender
🌟 Lifestyle
4.7😊(2K ratings)
FreeIn-App Purchases
My Diary With Lock screenshot 1
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My Diary With Lock screenshot 3
My Diary With Lock screenshot 4
My Diary With Lock screenshot 5

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.

What We Love

  • 👍 Cute and aesthetically pleasing design
  • 🔒 Secure with password protection
  • 💡 Ability to customize fonts and backgrounds
  • 🚀 Fast and easy to use
  • 👍 Helpful for journaling and note-taking

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 💡 Limited selection of journal cover options
  • 🐛 Font settings not always retained
  • 💡 Lack of backup and restore functionality
Secret Diary With Passcode#3
4.6😊(8.2K ratings)
FreeAds
Secret Diary With Passcode screenshot 1
Secret Diary With Passcode screenshot 2
Secret Diary With Passcode screenshot 3
Secret Diary With Passcode screenshot 4
Secret Diary With Passcode screenshot 5

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.

What We Love

  • 🔒 Password protection
  • 💡 Customizable themes and fonts
  • 👍 Easy to use
  • 🚀 Unlimited entries
  • 🖼️ Ability to add photos
  • 📆 Calendar integration

Room to Improve

  • 🐛 Entries disappearing or not saving properly
  • 📢 Excessive ads
  • 🔒 Password issues (unable to reset, incorrect password not working)
  • 🔍 Lack of search/filter options
  • 📱 Crashes or freezes when using the app

More Lock Apps Free Diarys apps to explore

FAQ about Lock Apps Free Diarys

What are the best lock apps free diarys for iPhone?
Notebook - Diary & Journal App tops our lock apps free diarys ranking as of October 2026, with a 4.7-star average from 14K App Store ratings, and it's free to download.
Notebook - Diary & Journal App shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 246+ lock apps free diarys on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.