Simple Diary - journal w/ lock

Contains adsIn-app purchases
4.5
14.9K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Simple Diary – Private Journal with Lock, Mood Tracker & Reminders

Looking for a simple and secure way to write down your thoughts, track your mood, and keep personal notes? Our digital diary is designed to help you record daily moments, work notes, and emotions in a private and easy-to-use journal. No account registration is required – just start writing!

Features
✔ Insert Pictures in Your Diary Entries
Capture memories by adding up to 15 images per entry. Whether it's snapshots from your camera roll or saved pictures from the web, you can create a photo diary just like a personal blog.

✔ Secure Passcode Lock
Protect your privacy with a passcode lock. This journal with a lock ensures that your personal notes remain safe from prying eyes.

✔ Customizable Themes
Personalize your diary with 19 unique colour themes. Whether you prefer a cute pastel look or a sleek, professional theme, you can tailor the app’s appearance to your taste.

✔ Smart Tag Search
Quickly find past entries by adding tags to your notes. This feature makes it easy to navigate through your personal journal, even if you write daily.

✔ Adjustable Font Settings
Modify the font size, text spacing, and colour depth to create a comfortable writing experience.

✔ Reminder Notifications
Stay consistent with your habit tracker by setting daily writing reminders. Push notifications will help you remember to jot down your thoughts.

✔ Multiple Entries Per Day
Unlike traditional journals, this digital notebook allows unlimited daily entries, making it ideal for mood tracking, work notes, and personal reflections.

✔ Ad-Free Experience (In-App Purchase)
Enjoy an ad-free experience with a one-time payment option.

Start your private diary today and keep track of your thoughts, emotions, and daily activities. With password protection, photo attachments, and smart organization, this secure journal is your go-to app for personal writing.

A personal diary is more than just a notebook – it’s a place to reflect, express emotions, and store valuable memories. Years from now, you can look back and see how you’ve grown.

Download now and create your own journal notebook today!

Help & Feedback
For assistance, please visit the Help / FAQ section in the app settings. If you have any issues, use the feedback section in the app for the fastest response.
Updated on
21 Mar 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
14.2K reviews
Erika Gunnerson
4 August 2023
This app has potentional, but there is one major issue with it: reminders are VERY late. I have reminders set to 9 PM Eastern time, but for some reason, the reminders are always appearing around 1-2 AM instead of 9 PM. I guess I have to set my reminders earlier just to see if they'd appear around 9 PM. It literally does this every day, and it's very frustrating. I end up forgetting to write sometimes because I'm not reminded until hours later.
3 people found this review helpful
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Aleata Holloway
15 November 2023
I like the simplicity of the app. I am able to write my thoughts and ideas down. It's cool that you can add a picture from your photos to your ideas. I like that it is simple so my focus can be more geared towards my thoughts. It also has a calendar approach and list view of the journal entries. The app is easy to use. It's a cool 😎 app if you don't need a bunch of bells and whistles. ;-) Thanks!
16 people found this review helpful
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Philip smith
26 May 2025
Works but photos stored at really poor quality. I bought this before finding out that the photos that are added are only at very poor quality which, for me, makes it pointless. I've stopped using it. Waste of money
Did you find this helpful?
Komorebi Inc.
27 May 2025
We're sorry to hear about the poor image quality issue. There might be a specific cause for this problem. If you contact our support team at support@komorebi-studio.com, we may be able to help resolve this issue. We appreciate your feedback.

What's new

Bug fixes and improvements.