Best Thought Diary Apps

240+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 2026

Whether you're new to thought diary or looking for an upgrade, our curated collection of 240+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Thought Diary Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Clarity: CBT Self Help JournalClarity: CBT Self Help JournalFree4.8★ (29K)YesYesJul 2026
2CBT Thought Diary AppCBT Thought Diary AppFree4.9★ (11)NoYesJul 2026
3Day One: Daily Journal & DiaryDay One: Daily Journal & DiaryFree4.8★ (117K)YesYesJul 2026
4Reflectly - Journal & AI DiaryReflectly - Journal & AI DiaryFree4.6★ (82K)NoYesJul 2026
5Diary With PasswordDiary With PasswordFree4.7★ (26K)NoYesJul 2026
6Daylio Journal - Mood TrackerDaylio Journal - Mood TrackerFree4.8★ (60K)NoYesJul 2026
7AquaTru Water PurifierAquaTru Water PurifierFree1.5★ (145)NoNoJul 2026
8Moodnotes - Mood TrackerMoodnotes - Mood TrackerFree4.7★ (11K)YesYesJul 2026

Top Picks for Thought Diary

Clarity: CBT Self Help Journal#1

Clarity: CBT Self Help Journal by Inquiry Health LLC

Mood Tracker, Therapy, ADHD
Editor's Choice
🏥 Medical
4.8😊(29K ratings)
FreeAdsIn-App Purchases
#41in Medical
Clarity: CBT Self Help Journal screenshot 1
Clarity: CBT Self Help Journal screenshot 2
Clarity: CBT Self Help Journal screenshot 3
Clarity: CBT Self Help Journal screenshot 4
Clarity: CBT Self Help Journal screenshot 5

This app helps manage stress, anxiety, and low mood through AI-infused journaling, mood tracking, and guided exercises. It offers tools to reframe negative thoughts, build resilience, and foster personal growth with science-backed techniques.

What We Love

  • 🚀 Helpful for mental health
  • 👍 Guided journaling and thought analysis
  • 🤖 Useful AI chatbot
  • 📊 Tracks mood and patterns

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Limited free version
  • 🔒 Paywall for key features
CBT Thought Diary App#2

CBT Thought Diary App by Aly Bairamov

Journal Therapy for Self-Help
Strong Contender
💪 Health & Fitness
4.9(11 ratings)
FreeIn-App Purchases
CBT Thought Diary App screenshot 1
CBT Thought Diary App screenshot 2
CBT Thought Diary App screenshot 3
CBT Thought Diary App screenshot 4

This app helps you track and transform your thoughts and emotions using the ABC model of Cognitive Behavioral Therapy. Log your experiences, gain insights into patterns, and challenge negativity for improved mental well-being. Securely store your data and export progress for personal review or sharing with professionals.

Day One: Daily Journal & Diary#3

Day One: Daily Journal & Diary by Bloom Built Inc

Private Gratitude Journaling
Worth Considering
💪 Health & Fitness
4.8😊(117K ratings)
FreeAdsIn-App Purchases
#83in Health & Fitness
Day One: Daily Journal & Diary screenshot 1
Day One: Daily Journal & Diary screenshot 2
Day One: Daily Journal & Diary screenshot 3
Day One: Daily Journal & Diary screenshot 4
Day One: Daily Journal & Diary screenshot 5

Record your life with a private digital journal. Securely save text, photos, audio, and video. Features include reminders, prompts, and automatic data import to help you stay consistent and reminisce.

What We Love

  • 💻 Excellent journaling app
  • 🗓️ Ability to create multiple journals
  • 🎨 Customizable journal templates
  • 🔍 Powerful search and filtering

Room to Improve

  • 🔒 Subscription model for premium features
  • 🗓️ Issues with syncing and data loss
  • 🖌️ Limited customization options

More Thought Diary apps to explore

4
Reflectly - Journal & AI Diary
Reflectly - Journal & AI Diary
Reflectly - Journal & AI Diary
Mood Tracker & Daily Quotes
Free

This AI-powered journaling app helps you track your mood, process thoughts, and improve mental well-being. It offers personalized prompts and insights based on your entries to encourage self-care and mindfulness.

AI-powered journalingMood tracking and analysisPersonalized prompts and insights
💪 Health & Fitness
(82K)
free with in-app purchases
5
Diary With Password
Diary With Password
Diary With Password
No Ads Journal Diary Notebook
Free

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.

Password and biometric securityDaily entry loggingFull text search
📊 Productivity
(26K)
free with in-app purchases
6
Daylio Journal - Mood Tracker
Daylio Journal - Mood Tracker
Daylio Journal - Mood Tracker
Private Diary, Health, Habits
Free

This app helps you track your moods and activities to understand your well-being. It offers a private micro-diary experience without requiring extensive typing, allowing you to identify happiness triggers and build positive habits.

Mood tracking with icons and emojisActivity loggingPrivate journaling without typing
🌟 Lifestyle
(60K)
free with in-app purchases
7
AquaTru Water Purifier
AquaTru Water Purifier
AquaTru Water Purifier
by Ideal Living Management, LLC
Free

Monitor your water quality in real-time with this app, which connects to a WiFi-enabled water purifier. Track water consumption, savings, and environmental impact. Access a database of water contaminants by zip code and reorder filters directly.

Real-time water quality monitoring (TDS)Track water consumption (daily, weekly, monthly, yearly)Calculate money saved vs. bottled water
💪 Health & Fitness
(145)
free
8
Moodnotes - Mood Tracker
Moodnotes - Mood Tracker
Moodnotes - Mood Tracker
Daily Self Care Journal & CBT
Free

This app helps you track your mood, identify triggers, and improve your thinking habits using principles of cognitive behavior therapy. It offers tools for self-awareness, reducing anxiety, and developing healthier perspectives for increased well-being.

Track mood and identify triggersAutomatic face scanning for mood captureJournaling with photos and notes
💪 Health & Fitness
(11K)
freemium
9
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
10
5 Minute Journal・Daily Diary
5 Minute Journal・Daily Diary
5 Minute Journal・Daily Diary
Gratitude・Journal・Mood Tracker
Free

This app guides users through a daily gratitude journaling practice using principles of positive psychology. It helps cultivate a more positive outlook by focusing on what's good, with features like guided prompts, reminders, and secure entry protection. The app aims to improve overall well-being and mental health through consistent practice.

Guided journaling promptsDaily gratitude entriesMood tracking
💪 Health & Fitness
(17K)
free with in-app purchases
11
DailyBean - simplest journal
DailyBean - simplest journal
DailyBean - simplest journal
The simplest way to log a day
Free

This app provides a simple and enjoyable way to log daily experiences and moods. Customize your journal with themes and icons, and gain insights into your patterns with analysis reports. Easily integrate health data and special moments.

Record in secondsFully customizable icons and blocksDecorate with themes
🌟 Lifestyle
(70K)
free with in-app purchases
12
Mood Tracker - My Daily Diary
Mood Tracker - My Daily Diary
Mood Tracker - My Daily Diary
Daily Planner
Free

This app helps you understand and manage your moods to improve your mental well-being. It offers tools to track daily emotions, identify triggers, and practice relaxation techniques like meditation and breathing exercises. The goal is to foster self-awareness and promote healthier lifestyle choices for a better life.

Track moods and identify triggersDevelop healthier thinking habitsReduce anxiety with meditation
💪 Health & Fitness
(2.6K)
free
13
Secret Diary with Lock - Muse
Secret Diary with Lock - Muse
Secret Diary with Lock - Muse
Journal, Mood, Audio, Video
Free

This app allows you to capture and preserve life's moments with rich detail. Protect your thoughts with biometric or passcode locks, personalize your entries with various media, and sync across devices. It's designed to make journaling an enjoyable and secure experience.

Password, Face, and Fingerprint LockMultiple Customizable JournalsAdd Photos, Audio, Geolocation, Mood, Weather
🌟 Lifestyle
(535)
free with in-app purchases
14
Diary, Journal, Notes - Diaro
Diary, Journal, Notes - Diaro
Diary, Journal, Notes - Diaro
Your Personal & Secure Diary
Free

Record daily activities, thoughts, and memories securely. Organize entries with tags, locations, and folders. Sync across devices and export your data easily. Features include mood tracking, photo attachments, and a calendar view.

Secure PIN and fingerprint lockCustomizable themes and 30+ languagesPowerful search and filtering
🌟 Lifestyle
(4.3K)
freemium
15
Simple Daily Diary
Simple Daily Diary
Simple Daily Diary
Easiest way to journal
Free

Capture your everyday moments with a fast, easy, and beautifully designed journaling app. Add custom titles, personalize with themes, and easily find past entries with smart search. Sync across devices and enjoy local backups for peace of mind.

Add custom titles to entries20+ handpicked color themesSmart search by date or keywords
🌟 Lifestyle
(1.2K)
free with in-app purchases
16
My Daily Diary ‎
My Daily Diary ‎
My Daily Diary ‎
Private Journal with lock
Free

This app offers a private and flexible journaling experience. Track your mood, dreams, or experiences with customizable entries. Secure your thoughts with a built-in lock system for ultimate privacy.

Private journalingMood trackingCustomizable entries
🌟 Lifestyle
(1.1K)
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 Daily Diary - Mood Journal
My Daily Diary - Mood Journal
My Daily Diary - Mood Journal
Mood Tracker & Daily Journal
Free

This app allows you to document your thoughts, feelings, and important moments. It offers extensive customization options, including stickers, voice notes, and images, to enhance your entries. Track your moods over time to gain emotional insights and ensure your private journal remains secure with password protection.

Capture thoughts and feelingsCustomize entries with stickers, voice notes, and imagesTrack moods with each journal entry
🌟 Lifestyle
(10K)
free with in-app purchases
19
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
20
My thoughts - Cute diary
My thoughts - Cute diary
My thoughts - Cute diary
Your daily thoughts
Free

Securely record your daily thoughts and memories with a simple, intuitive interface. Add photos and moods to entries, and benefit from automatic emotion recognition. Your diary syncs across devices via iCloud, ensuring your thoughts are always safe and accessible.

Pincode and biometric securityAdd photos to entriesAdd moods to entries
🌟 Lifestyle
(131)
free with in-app purchases

FAQ about Thought Diary

What are the best thought diary apps for iPhone?
Clarity: CBT Self Help Journal tops our thought diary apps ranking as of July 2026, with a 4.8-star average from 29K App Store ratings, and it's free to download.
Yes — 20 of the top thought diary apps we rank are free to download, including Clarity: CBT Self Help Journal and CBT Thought Diary App.
Clarity: CBT Self Help Journal shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 240+ thought diary apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Clarity is a mental health hub designed to help users manage stress, anxiety, and low mood. It offers tools for mood tracking, reframing negative thoughts, problem-solving with an AI chatbot, practicing coping skills, and fostering personal growth through science-backed methods.
Key features include AI-infused journaling with adaptive questions and analysis, a compassionate AI chatbot for self-reflection, seamless mood and activity tracking with actionable insights, guided journals for self-awareness, personalized daily plans, and a curated wellness library with meditations and educational programs.

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