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Best Smart Diary Notes Apps

218+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

Finding the right smart diary notes app can be overwhelming with so many options. We've analyzed 218+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Smart Diary Notes

Diary With Password#1

Diary With Password by εΈ† 杨

No Ads Journal Diary Notebook
Editor's Choice
πŸ“Š Productivity
4.7😊(26K ratings)
FreeIn-App Purchases
Diary With Password screenshot 1
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Diary With Password screenshot 3
Diary With Password screenshot 4
Diary With Password screenshot 5
Diary With Password screenshot 6

Track life's progress, log daily thoughts, and protect your secrets with a password in this electronic diary app. Enjoy features like time stamps, reminders, night mode, and export options to PDF or text files. Organize entries with search and choose from different font sizes and types for a personalized journaling experience.

What We Love

  • πŸ’» Simple and easy to use
  • πŸ”’ Password protection
  • πŸ“ Customizable fonts and layout
  • ⏱️ Time stamp feature

Room to Improve

  • πŸ” Difficulty finding/accessing past entries
  • πŸ–ΌοΈ No image/media support
  • πŸ”„ Lack of syncing across devices
Simple Diary - Daily Journal#2

Simple Diary - Daily Journal by Komorebi Inc.

Journaling with lock, notebook
Strong Contender
🌟 Lifestyle
4.7😊(907 ratings)
FreeAdsIn-App Purchases
Simple Diary - Daily Journal screenshot 1
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Simple Diary - Daily Journal screenshot 5

A simple and functional diary app that allows for easy journaling, image insertion, passcode lock, theme customization, data backup, tag search, font adjustment, reminder function and multiple daily entries. Users can enjoy an ad-free experience through in-app purchase. Explore this efficient diary tool for your daily writing needs!

What We Love

  • πŸ‘ Simple and easy to use
  • πŸ“· Ability to add photos
  • πŸ”’ Password protection
  • πŸ—“οΈ Organized by calendar view

Room to Improve

  • πŸ› Occasional crashes or freezes
  • πŸ“ Limited photo upload capacity
  • πŸ’° Paywall for some features
Secret Diary With Passcode#3

Secret Diary With Passcode by Berce Alin

Secret diary
Worth Considering
🌟 Lifestyle
4.6😊(8.1K ratings)
FreeAds
Secret Diary With Passcode screenshot 1
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"Express your innermost thoughts with this discreet and user-friendly secret diary app. Safely store your personal stories, feelings, and memories behind a secure passcode. Enjoy features like diary entries, mood selection, emoji support, and search functionality."

What We Love

  • πŸ”’ Password protection
  • πŸ’‘ Customizable themes and fonts
  • πŸ‘ Easy to use
  • πŸš€ Unlimited entries

Room to Improve

  • πŸ› Entries disappearing or not saving properly
  • πŸ“’ Excessive ads
  • πŸ”’ Password issues (unable to reset, incorrect password not working)

More Smart Diary Notes apps to explore

4
VoxNote: Audio Journal
VoxNote: Audio Journal
VoxNote: Audio Journal
Transcription & Security
Free
🌟 Lifestyle
(0)
5
My Diary With Lock
My Diary With Lock
My Diary With Lock
Daily Journal, Notes, Memo
Free

A personalized diary app with mood tracking and password protection. Safely store daily thoughts, memories, and emotions with customizable options and privacy features. Download now and start journaling!

🌟 Lifestyle
(1.1K)
6
Notebook – Notes, To-Do, Memo
Notebook – Notes, To-Do, Memo
Notebook – Notes, To-Do, Memo
AI, Notepad, Planner
Free

An innovative note-taking application that allows users to write notes, create to-dos, add files, sketch ideas, record audio, capture moments, and more. Seamlessly syncs across devices and to the cloud for easy access. Get organized, collaborate, and stay productive with this all-in-one digital notebook.

πŸ“Š Productivity
(2.1K)
7
Colored Note
Colored Note
Colored Note
diary and notepad for everyone
Free

A versatile diary and notepad app for everyone to record thoughts, ideas, and experiences with options to add photos, colors, tags, organize notes, share with friends, and ensure privacy through passcode protection. Swipe left to delete notes. Start organizing your thoughts now!

🌟 Lifestyle
(4.8K)
8
AI Journal & Diary - Reflectr
AI Journal & Diary - Reflectr
AI Journal & Diary - Reflectr
Organize your mind with AI
Free

AI Journal is a versatile platform designed to help users organize their thoughts, ideas, and research related to artificial intelligence. With features such as tagging, searching, and customizable categories, it is a powerful tool for staying productive and informed in the field of AI. Start organizing your AI journey today!

πŸ“Š Productivity
(31)
9
Quick Diary
Quick Diary
Quick Diary
by TopOfStack Software Limited
Free

Easily jot down notes, ideas, and diary entries with this free application. Access your writings anytime, quickly search for specific notes, and share them effortlessly. Visit the support URL for more information on how to use this app.

πŸ“Š Productivity
(14)
10
Microsoft OneNote
Microsoft OneNote
Microsoft OneNote
Capture Notes, Ideas and Memos
Free

Capture notes, ideas, and memos effortlessly with this digital notepad app. Organize, search, and secure your notes, sync across devices, and collaborate easily. Simplify your life and download the app today.

πŸ“Š Productivity
(1M)
11
Goodnotes: AI Notes, Docs, PDF
Goodnotes: AI Notes, Docs, PDF
Goodnotes: AI Notes, Docs, PDF
Note taking, canvas & work app
Free

Revolutionize your note-taking experience with an all-in-one digital notebook app that combines handwriting, typing, images, and AI capabilities for smarter notes. From students acing exams to professionals boosting productivity, Goodnotes 6 offers unlimited digital notebooks with seamless synchronization and innovative features. Try Goodnotes today for a year of unlimited, backed up, and searchable digital notes.

πŸ“Š Productivity
(429K)
12
Day One: Daily Journal & Diary
Day One: Daily Journal & Diary
Day One: Daily Journal & Diary
Private Gratitude Journaling
Free

A highly acclaimed journaling app that offers a completely private digital space with secure features to record life moments through text, photos, and more. With a decade of updates, it boasts an intuitive design, unlimited entries, and robust privacy measures like end-to-end encryption and secure backups. Start forming a journaling habit effortlessly with this award-winning application.

πŸ’ͺ Health & Fitness
(117K)
13
Penzu
Penzu
Penzu
Secure Diary & Private Journal
Free

Capture your thoughts and memories securely with a private digital diary. Organize your entries, set reminders, and reflect on your experiences. Start journaling today for a personalized way to keep track of your life.

πŸ“Š Productivity
(2.5K)
14
Note Lock~Lock your Tales Safe
Note Lock~Lock your Tales Safe
Note Lock~Lock your Tales Safe
Keep privacy secret diary data
Free

Secure your private notes with this app that allows you to separate and protect your secret thoughts from your device's standard notes. Enjoy features such as pencil eraser animations, stickers, and sticky notes for an interactive experience. Backup your data for peace of mind in case your device is lost or damaged.

πŸ”§ Utilities
(2.8K)
15
Diary Book - Mood Diary
Diary Book - Mood Diary
Diary Book - Mood Diary
Private journal with Lock
Free
🌟 Lifestyle
(214)
16
Cue - Smart AI Meeting Notes
Cue - Smart AI Meeting Notes
Cue - Smart AI Meeting Notes
Live audio to text companion
Free
πŸ“Š Productivity
(224)
17
Noteshelf 3: AI Digital Notes
Noteshelf 3: AI Digital Notes
Noteshelf 3: AI Digital Notes
Note Taking & PDF Annotation
Free

A powerful digital note-taking application designed for efficient and organized note-taking on various devices. Capture ideas, annotate documents, create sketches, and stay organized with ease. Try it now for seamless note-taking experience.

πŸ“Š Productivity
(277)
18
Diary with Lock: Diary Journal
Diary with Lock: Diary Journal
Diary with Lock: Diary Journal
Daily Diary & Mood Tracker
Free

A private journaling app with lock feature to protect daily entries. Safely jot down thoughts and memories securely.

🌟 Lifestyle
(728)
19
My Super Secret Diary Notes
My Super Secret Diary Notes
My Super Secret Diary Notes
Lock the Private Dream Journal
Free

Capture your memories securely with a customizable diary app that allows you to lock your private notes, attach photos, and choose beautiful designs for your entries. Safeguard your thoughts with lock options and access your memories across devices. Download now to start documenting your life!

πŸ“Š Productivity
(1.9K)
20
Diary! SmartDiary
Diary! SmartDiary
Diary! SmartDiary
Private diary of simple, easy
Free

This private diary application allows users to easily record daily memories with photos, track moods and schedules, and view past memories, all while secured with a passcode lock and iCloud backup. With various customization options and features like notifications and landscape orientation support, users can personalize their experience and stay organized.

🌟 Lifestyle
(44)

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