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Diarium vs RedNotebook

Price, platforms and features side by side. The table says where each price was read and when.

Diarium

Private journal with a one-time Pro purchase and your own cloud sync

Free plan · from $14.99 one-time

RedNotebook

Free desktop diary that stores entries as plain text files

Free

Where they differ

  • Diarium starts at $14.99 one-time purchase per platform. RedNotebook is free.
  • Only Diarium lists macOS, iOS and Android apps.
  • Only RedNotebook lists a Linux app.
  • Diarium can be bought with a one-time purchase.
  • RedNotebook is open source, according to its own site.
  • Diarium also covers mood tracking.
In commonFree planWindowsWorks offlineLocal-firstDaily notesTemplates

At a glance

DiariumRedNotebook
PricingFree planFree
Starts at$14.99 one-time purchase per platformFree
Free planFree to use on Android, iPhone, iPad and Mac, without Pro features such as Cloud Sync, unlimited attachments, Word export, widgets, custom fonts, weather and integrations. Windows is a paid app.Free Software under the GPL with no paid version or feature limits. The downloads page accepts voluntary donations in US dollars or euros.
Free trial7-day trial of all Pro features on Android, iOS and macOS before buying.None listed
macOS
Windows
Linux
iOS
Android
Made byTimo PartlJendrik Seipp
Price read fromapps.apple.comrednotebook.app
CheckedOct 5, 2026Oct 6, 2026

Who each one suits

Diarium

  • People who want to pay once instead of subscribing
  • Journaling across Windows, Android, iPhone, iPad and Mac
  • Keeping a journal on your own device and cloud storage with no account
  • Pulling calendar, fitness and social activity into daily entries

RedNotebook

  • Linux and Windows users who want a diary kept as plain text on their own disk
  • People who tag entries with #hashtags and search across years of them
  • Writers who want their journal exported to plain text, HTML or LaTeX

Worth knowing

Diarium

  • Pro is bought separately for each platform, and iOS and macOS count as separate purchases.
  • Cloud Sync, unlimited attachments, Word export, widgets and integrations require Pro.
  • There is no free version on Windows, where Diarium is a paid app listed at $19.99 in the Microsoft Store.
  • By default the journal is stored only on the device, so without Cloud Sync you need to make your own backups.

RedNotebook

  • There are no mobile apps or web version, and macOS has no official support, only Homebrew or source builds to try on your own.
  • There is no built-in encryption or lock; the help suggests an encrypted folder or an encrypted home partition.
  • Sync is not built in: using it on several computers means keeping the journal folder in Dropbox, Syncthing or on a server.
  • Word clouds are missing from version 2.x on Windows, and there is no direct PDF export.

Key features

Diarium

Rich entries with attachments
Entries support rich text formatting, tags and locations, plus photos, videos, audio recordings, PDFs and other files. Several entries can be created per day.
Calendar, timeline and map views
Look back through a calendar, a scrolling timeline, a map of places visited, an attachments gallery and an On this day page with optional notifications.
Automatic feeds
Connected services add context to a day: camera roll photos, calendar events, weather, Strava and Apple Health data, Microsoft To Do tasks and Last.fm scrobbles. Some feeds require Pro.
Sync through your own cloud
Pro syncs the journal across platforms using your OneDrive, Google Drive, Dropbox, iCloud or WebDAV storage. The uploaded data is compressed and encrypted.
Import and export
Migrates journals from Day One, Diaro, Journey, Daylio, Diarly, Daybook, Evernote and Apple Journal, and exports to Word, plain text, HTML or JSON.
Lock without an account
No login or sign-up is required and the app carries no ads. The journal can be protected with a password, PIN or biometrics such as Face ID and Windows Hello.

RedNotebook

Formatted daily entries
Text can be bold, italic, underlined or struck through, with lists and links. You write in an edit mode and read the result in a preview mode.
Hashtags, search and word clouds
Entries are tagged with #hashtags and found with search-as-you-type. Clouds show the most common words and tags, though not in version 2.x on Windows.
Templates
There is one template for each day of the week plus any number of named templates, all kept as editable text files in a template directory.
Images, files and links
An Insert menu adds images, files and links at the cursor. Inserted items are linked to, not copied into the journal directory.
Plain-text storage and backups
A journal is a directory of plain text files, one per month. Entries save automatically, and a Backup command packs the journal into a zip archive.
Export
The journal exports to plain text, HTML or LaTeX. A PDF is made by printing the HTML export from a browser or compiling the LaTeX file.

Plans

Diarium

  • Free$0

    The app on Android, iPhone, iPad and Mac without Cloud Sync, unlimited attachments, Word export, widgets, custom fonts, weather or integrations.

  • Pro version (Android, iOS or macOS)$14.99

    one-time purchase per platform

    Unlocks Cloud Sync, unlimited attachments, Word export, connected feeds, custom fonts, widgets and weather. iOS and macOS count as separate platforms.

  • Diarium for Windows$19.99

    one-time purchase (Microsoft Store)

    A paid app that already includes Pro. The same app is also sold as a direct download on Gumroad for $30.

RedNotebook

  • RedNotebook$0

    The complete desktop journal for Linux and Windows, with every feature included.

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