ONEDiary: Secure Private Diary

Contains adsIn-app purchases
1.66K reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
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About this app

ONEDiary: Your Secure Private Diary

ONEDiary is the ultimate private diary app that lets you securely record and manage your precious memories and thoughts. Beyond simple journaling, it precisely analyzes your emotions and daily life to deliver a unique experience.


Why ONEDiary?

Privacy and security are ONEDiary's top priorities. Your diary entries are completely safe and accessible only by you. Keep your precious records safe with a thorough security system.


Key Features

  • Various Entry Styles: Enrich your diary entries by attaching text and photos of your precious moments.
  • Easy Entry Management: Effortlessly find past entries anytime using view by date and calendar view. Browse your memories at a glance with weekly view and monthly gallery view.
  • Mood Tracking: Express your current emotions intuitively with mood emoticons and bring your diary entries to life.
  • Powerful Search: Use the search feature to quickly locate entries by specific date, keyword, or hashtag.
  • AI-Powered Statistics & Analytics: Gain deep insights into your journaling habits and emotional trends with AI-powered statistics and analysis.
  • Hashtags: Categorize and organize your journal entries systematically using hashtags.

Record Your Life with ONEDiary

Special moments in daily life, unforgettable memories, and honest thoughts you want to share. ONEDiary will safely and reliably protect every moment of your life. Download ONEDiary today and create your own special journal.

Your life story is waiting.

A secure private diary app to safely record and protect your memories.
Updated on
Aug 23, 2026

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, Personal info and 3 others
  • Data isn’t encrypted
  • You can request that data be deleted

Ratings and reviews

1.63K reviews
Norene Dennis
April 17, 2024
I like the app. Ads don't bother me, because when the appear full screen, you just bypass them by moving onto using the ap. The small ads that appear, are just smaller versions of the big ads you bypassed. Cant think of anything negative on this free ap. Thank you. It's been very handy for me, as I'm good at putting my thoughts down via a keyboard.
41 people found this review helpful
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squib
April 29, 2024
i love how this will only open from your thumbprint. no ads (save the short one when you first open the app), and it's fairly straightforward. my only problem is, when i've closed the app without hitting the checkmark first, it's completely erased what i had been working on. it's a big annoyance, as i use the app to write in general. having to go back and rewrite several paragraphs is incredibly frustrating.
9 people found this review helpful
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Junior “Gong”
May 23, 2026
I love the fact that you do not have to type in the date that you do your diary, except, of course, you may wanna type in the time when you do it. And it highlights the day on the calendar when you did your entry/diary. It's an essential tool to keep up with your own progress and whatnot. Highly recommended for anyone who wanna just do personal loggings.
5 people found this review helpful
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Soosu Studio, Inc
May 23, 2026
Thank you so much for the great review! We will keep improving the app and making it more stable and useful.