Day One Journal: Private Diary

In-app purchases
4.7
20.6K 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
15 Aug 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
19.6K reviews
Stephen Worden
9 February 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.
45 people found this review helpful
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Dayton Livingston
15 July 2025
Not ready for prime time. Used this app for about a half hour, and the incompleteness of it kept adding up. Pretty sure it's still in Beta, so I'll wait for the actual product. My first grievance was that there's no way to change the font. Followed immediately by the "dealbreaker" that there's no way to lock it. Only started exploring the Windows version at this point - it was enough to turn a "maybe" into a solid "no". Also not thrilled about the RENTAL program (can't purchase).
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Automattic, Inc
16 July 2025
Hi, Dayton! The Android app is no longer in beta. That said, changing the font in the Android app is not yet possible. If you would like to lock the app on Android, you can follow our guide here: https://dayoneapp.com/guides/day-one-for-android/passcode-biometrics-in-app-options-in-day-one-for-android/
xoangelique
11 July 2025
I've been using this app on my iPhone for over a year now and I love it. I recently switched over to the S25 Ultra and noticed a slight difference between how the font appears on iOS &, how it appears on Android. The default font appears smoothly throughout the ios version, but on android it's not the same. Please fix! The premium cost is still a bit too high in my opinion.
1 person found this review helpful
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What's new

Improvements:
- Enhanced notification permission dialog.
- Added labs feature capacity management and notification system.

Fixes:
- Fixed crash when viewing lists in entries.
- Corrected All Entries timeline filtering query.
- Fixed export with date range issue.