Day One
Day One is a journaling app for Mac that helps you capture daily entries, photos, memories, and reflections in a private digital journal.
What is Day One?
Day One is a journaling and diary app for Mac focused on capturing personal entries, photos, videos, and everyday memories in one place. It is designed for people who want to keep a daily journal, record life events, practice reflection, or maintain writing habits over time. The app supports rich text formatting, multiple journals, tags, search, and reminders that help users organize entries and return to them later. It also includes features for revisiting past memories, exporting journal data, and syncing across devices for users who write on more than one platform. Day One is published by Bloom Built and is also available on iPhone, iPad, Apple Watch, Android, and other platforms connected to the same journaling workflow.
Key features
- Write journal entries with rich text formatting and markdown support
- Add photos and videos to capture moments alongside written entries
- Organize entries with multiple journals, tags, favorites, and search filters
- Set reminders and use prompts or templates to build a journaling habit
- Revisit past memories with On This Day and timeline-style browsing
- Export your journal data in formats such as PDF, plain text, or JSON
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Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
Day One is legitimate journaling software, and privacy protections such as passcode locking, Touch ID support, backups, and end-to-end encryption are consistent with its purpose. Because it is a personal journal, entries may contain highly sensitive text, photos, location details, and other private information, so users should review sync, backup, and sharing settings to match their privacy needs.
Recommendation: Keep Day One if you actively use it for journaling, memory keeping, or private notes on your Mac. If you no longer use it, removing the app is generally reasonable, but export any entries you want to keep first and confirm your journal data is synced or backed up before uninstalling.
Common paths
/Applications/Day One.app
Cache paths
~/Library/Caches/com.bloombuilt.dayone-mac
Support paths
~/Library/Application Support/Day One
Preference paths
~/Library/Preferences/com.bloombuilt.dayone-mac.plist
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