Best Free Diary Sleep Apps

248+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated August 2026

Whether you're new to free diary sleep or looking for an upgrade, our curated collection of 248+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Free Diary Sleep Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Baby Diary: Sleep+Baby Diary: Sleep+Free was $8.994.8★ (140)YesYesAug 2026
2Sleep Tracker: Sleep DiarySleep Tracker: Sleep DiaryFreeNoYesAug 2026
3Easy Sleep DiaryEasy Sleep DiaryFree3.8★ (15)NoNoMay 2026
4Bali - Wake Up TogetherBali - Wake Up TogetherFreeNoYesAug 2026
5Sleep Diary & Bedtime TrackerSleep Diary & Bedtime TrackerFreeYesNoAug 2026
6Sleep Diary AppSleep Diary AppFree3.5★ (23)NoYesMay 2026
7Diary With PasswordDiary With PasswordFree4.7★ (27K)NoYesAug 2026
8Simple Diary, Journal, NotesSimple Diary, Journal, NotesFree4.8★ (172)YesNoAug 2026

Top Picks for Free Diary Sleep

Baby Diary: Sleep+#1

Baby Diary: Sleep+ by Pavel Goncharov

Helping to improve sleep
Editor's Choice
🏥 Medical
4.8(140 ratings)
FreeAdsIn-App Purchases
Baby Diary: Sleep+ screenshot 1
Baby Diary: Sleep+ screenshot 2
Baby Diary: Sleep+ screenshot 3
Baby Diary: Sleep+ screenshot 4
Baby Diary: Sleep+ screenshot 5
Baby Diary: Sleep+ screenshot 6

This app helps new parents track and improve their baby's sleep patterns. It logs sleep sessions, calculates wakefulness, and offers guidance on sleep standards. The tool also allows for detailed notes, event tracking, and statistical analysis to address sleepless nights.

More Free Diary Sleep apps to explore

4
Bali - Wake Up Together
Bali - Wake Up Together
Bali - Wake Up Together
by Senjalya Tripathi
Free
🔧 Utilities
(0)
5
Sleep Diary & Bedtime Tracker
Sleep Diary & Bedtime Tracker
Sleep Diary & Bedtime Tracker
Sleep journal & insomnia log
Free
💪 Health & Fitness
(0)
6
Sleep Diary App
Sleep Diary App
Sleep Diary App
Journal with Bedtime Reminders
Free

Easily log your sleep durations to analyze your health and become more conscious of your sleep patterns. This app integrates with Apple Health to share your sleep data seamlessly. iPhone 6 users can also track atmospheric pressure changes during sleep.

Log sleep durationsAnalyze sleep healthConnect with Apple Health
💪 Health & Fitness
(23)
free with in-app purchases
7
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
(27K)
free with in-app purchases
8
Simple Diary, Journal, Notes
Simple Diary, Journal, Notes
Simple Diary, Journal, Notes
Simple and cool diary app
Free

This app offers a straightforward and aesthetically pleasing way to maintain a daily journal. Designed for users seeking simplicity, it avoids complex settings for an intuitive and stress-free journaling experience.

Simple daily diary keepingEasy-to-use interfaceBeautiful and clean design
🔧 Utilities
(172)
ad-supported
9
Sleep: Sounds & Meditation
Sleep: Sounds & Meditation
Sleep: Sounds & Meditation
Bedtime Stories, Fall Asleep
Free

This app helps you fall asleep faster and stay asleep longer with soothing sounds, music, and guided meditations. Create a calming atmosphere to unwind and achieve relaxation goals like reducing anxiety.

Soothing sounds and musicProfessionally recorded melodiesGuided sleep meditations
💪 Health & Fitness
(9.6K)
free
10
SleepSense: Sleep Tracker
SleepSense: Sleep Tracker
SleepSense: Sleep Tracker
Night Sounds & Sleep Insights
Free

This app analyzes ambient sound activity to provide insights into your sleep patterns. It tracks sleep duration, scores, quiet periods, and sound events, with optional integration with Apple Health. Advanced features are available through a premium subscription.

Overnight sleep monitoringSleep scores and summariesSound activity insights
🔧 Utilities
(1)
freemium
11
Diary - Journal with password
Diary - Journal with password
Diary - Journal with password
Beautiful diary with password
Free

This app provides a secure and beautiful space to record your thoughts, plans, and life moments. Protect your entries with a password and enjoy a customizable interface with features like image support and PDF export.

Password protection with PINAdd/edit/remove imagesSearch functionality
🌟 Lifestyle
(1.7K)
free with in-app purchases
12
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
13
The Sleep Diary
The Sleep Diary
The Sleep Diary
Sleep Research & Clinical Tool
Free

This app collects sleep-related symptoms and behaviors for research participants. Access is restricted to those enrolled in studies by Dr. Anne Richards at the San Francisco VA Medical Center, requiring a unique login. It offers daily assessments, a calendar for missed entries, and data summaries.

Research study enrollment requiredDaily sleep symptom assessmentsCalendar for missed entries
🏥 Medical
(7)
free
14
Restful: CBT-i Insomnia Diary
Restful: CBT-i Insomnia Diary
Restful: CBT-i Insomnia Diary
Sleep Therapy Tracker Journal
Free

This app offers an affordable way to practice Cognitive Behavioral Therapy for Insomnia (CBT-i). It guides users through evidence-based techniques to improve sleep, build better habits, and manage stress. Track your sleep, complete daily lessons, and optimize your sleep efficiency over several weeks.

Sleep diary with efficiency scoringSleep restriction and stimulus control techniquesPsychoeducation on insomnia causes
🏥 Medical
(232)
subscription
15
SleepLedger: Sleep Diary
SleepLedger: Sleep Diary
SleepLedger: Sleep Diary
10-sec check-in, no scores
Free
💪 Health & Fitness
(0)
16
WikiSleep: Sleep Stories
WikiSleep: Sleep Stories
WikiSleep: Sleep Stories
Sleep Stories for Insomnia
Free
$6.99 | 100% OFF

This app offers unique bedtime stories designed to calm a busy mind and promote restful sleep. It features a diverse library of audio content, including biographies, histories, meditations, and classic tales, all narrated soothingly. Customizable listening options and multiple languages enhance the sleep experience.

Unique audio sleep storiesBiographies and historiesGuided meditations
💪 Health & Fitness
(9)
free with in-app purchases
17
Sleep Diary – Relax Sound
Sleep Diary – Relax Sound
Sleep Diary – Relax Sound
Smart Alarm & Sleep Sounds
Free

This app helps you understand and improve your sleep with advanced tracking and analysis. It monitors your sleep patterns, provides detailed reports, and features a smart alarm to wake you gently. Enjoy calming sounds to help you relax and unwind for better rest.

Accurate sleep trackingSleep reports and insightsSmart alarm
💪 Health & Fitness
(3)
freemium
18
Condor Sleep Diary
Condor Sleep Diary
Condor Sleep Diary
by Condor Instruments Ltda
Free
💪 Health & Fitness
(0)
19
Diary with Lock- Daily Journal
Diary with Lock- Daily Journal
Diary with Lock- Daily Journal
Diary with Lock: Daily Journal
Free

Securely record your thoughts, feelings, and memories with a password or facial ID lock. Features auto-save, auto-sync to the cloud, and offline journaling. Personalize entries with various tools and export them as PDFs with a premium subscription.

Password and facial ID lockAuto-save and auto-syncCloud backup for data recovery
🔧 Utilities
(2)
freemium
20
Diary Journal - With Lock
Diary Journal - With Lock
Diary Journal - With Lock
Private Secret Daily Journal
Free

This app provides a secure and private digital space for recording thoughts, memories, and dreams. It encourages self-reflection and personal growth through daily journaling, ensuring all entries are kept confidential.

Secret diary entriesLog life events and progressRecord emotions and feelings
🌟 Lifestyle
(360)
free with in-app purchases

FAQ about Free Diary Sleep

What are the best free diary sleep apps for iPhone?
Baby Diary: Sleep+ tops our free diary sleep apps ranking as of August 2026, with a 4.8-star average from 140 App Store ratings, and it's free to download.
Baby Diary: Sleep+ shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ free diary sleep apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Baby Diary: Sleep is an application designed to help young parents improve their baby's sleep patterns and address issues with sleepless nights. It allows users to log sleep sessions, calculate wakefulness, and provides insights into sleep standards.
Key features include saving baby's dreams (sleep sessions), calculating wakefulness between sleep, providing hints on sleep standards, adding details like location and comments to sleep logs, marking daily events, and generating statistical information. It also offers support for multiple toddlers and bedtime reminders.