Day One Journal: Private Diary

In-app purchases
4.7
23.2K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Day One is the journal app that reinvented journaling. Completely private, cross-platform, and designed to never fill up, Day One is designed to let you capture your life as you live it. Use Day One as a daily journal, personal diary, note taking app, travel log, or gratitude journal.

“Day One creates something so rare it feels almost sacred: A completely private digital space.” – New York Times

“Day One makes keeping a journal delightfully easy.” – Wired

“It’s perfect! Does what it says on the box. I was able to import my stuff from another (pricey) journal so that I didn’t lose those entries. It’s easy to add multiple entries to a day and to keep pictures. And it’s lockable, keeping private thoughts protected. I will happily use Day One for years.” – Day One user

PRESERVE EVERY MEMORY

- Unlimited text entries
- Unlimited photos*
- Different journals for every aspect of your life*
- IFTTT shortcuts allow importing data from Spotify, YouTube, Strava, Fitbit, Facebook, Twitter, and more

PRIVATE AND SECURE
- Automatic backups keep your journal entries safe
- End-to-end encryption, which is a fancy way of saying your entries are 100% private
- Journal entries stay secure with passcode or Fingerprint lock
- Export options (PDF, JSON) ensure your entries always stay yours
- Seamless sync across multiple devices

FORM A HABIT & STAY CONSISTENT
- Programmable journaling reminders
- Unique, daily journal prompts help eliminate writer’s cramp

- SIMPLE TO USE, EASY TO LOVE
- Beautiful, award-winning design
- Powerful rich text formatting
- Ability to star favorite entries to revisit quickly

DELIGHT IN THE DETAILS
- Time, date, and weather are automatically added to every entry
- On This Day feature allows you to revisit past memories
- Tags, favorites, and search filters make it easy to find what you’re looking for
- Map view quickly shows all the places you’ve journaled from

* Day One is FREE to use forever with unlimited entries. To get more out of Day One, try Premium free for 1 month.

Privacy Policy: https://dayoneapp.com/privacy-policy/
Terms of Use: https://dayoneapp.com/terms-of-use/
For technical assistance or other inquiries: https://dayoneapp.com/contact/
Updated on
Dec 5, 2025
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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 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
22.1K reviews
Stephen Worden
February 9, 2025
Excellent with one exception: you cannot search inside a particular note. Here's how Day One search works - it returns a list of notes that contain your search term. You cannot search INSIDE a note using the Day One app. This is a huge deficiency. To get around this, use your PC to open Day One on the web. However, this does not work from your mobile device. If you try to use a web browser to access the Day One website you are redirected to the app. Bummer.
104 people found this review helpful
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Kaeli G.
November 23, 2025
wish there was a tab option to start a new paragraph. instead it just skips to options at the bottom on desktop. otherwise fantastic, makes me feel safe writing with a lock on a journal. grew up in a house where someone would always go through my stuff, and this is reassuring even though that isn't the case anymore!
1 person found this review helpful
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Sammy
October 17, 2025
I've been using this for journaling as recommended by a therapist. It works well, I appreciate being able to have multiple journals. However, I keep sync off intentionally, but after a while of it being off, it randomly turned itself back on. I don't appreciate being forced to sync, especially without notice that it was turned back on. I don't wish to backup my entries.
6 people found this review helpful
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Automattic, Inc
October 20, 2025
Thanks for sharing this. We completely understand your concern about sync turning on unexpectedly. That shouldn’t happen without your action. If it ever happens again, please contact us right away at dayoneapp.com/contact so we can investigate. If you remember what actions you were doing around the time it turned back on, please share them with us.

What’s new

Improvements:
- Improved search design
- Enabled search by titles
- Added sorting for search results
- Updated announcement badge in more tab
- Allowed template attachment from editor
- Updated image generation UI

Fixes:
- Brought favorites back to search!
- Fixed AI titles crash
- Corrected date format in Calendar
- Resolved navigation issue in prompt pack detail