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Head-to-head · Journal Apps

Day One vs Diarium

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Day One #1 in Journal Apps 9.4/10 Free plan · 30-day trial Free planFree trial✓ 5 of 5 features Visit Day One
Diarium #2 in Journal Apps 9.2/10 Free plan · 7-day trial Free planFree trial✓ 4 of 5 features Visit Diarium

Day One leads on 0 checks, Diarium on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDay One · 9.4/10
  • Free planboth
  • Free trialboth
  • Most featuresDay One · 5 of 5

Day One scores higher on our rubric for journal apps: 9.4 against 9.2 out of 10; our editors rank them #1 and #2.

Day One is the better fit for most people wanting a full-featured journal. Diarium is the better fit for feature-rich journaling across major platforms.

  • Day One fits best

    Most people wanting a full-featured journal

  • Diarium fits best

    Feature-rich journaling across major platforms

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Day One 9.4/10 Visit ↗ Diarium 9.2/10 Visit ↗
At a glance
Editor score 9.4 9.2
Ranking #1 in Journal Apps #2 in Journal Apps
Best for Most people wanting a full-featured journal Feature-rich journaling across major platforms
Pricing model Free plan + paid Free plan + paid
Starting price $49.99/yr —
Free plan ✓ ✓
Free trial 30 days 7 days
Free trial length 30 days 7 days
Deployment Cloud, Desktop, Mobile, Browser extension Desktop, Mobile
Platforms Web, Windows, macOS, iOS, Android, Chrome extension Windows, macOS, iOS, Android
Support Email, Community, Docs Email, Docs
Integrations 3 integrations 16 integrations
Built for Solo, Small business Solo, Small business
Features Day One 5/5 · Diarium 4/5
Media attachments ✓ ✓
Offline access ✓ ✓
Privacy lock ✓ ✓
End-to-end encryption ✓ (best) Not checked yet
Search and filters ✓ ✓
Specs
Export formats Multiple Multiple
Platform coverage All All
Our review
Pros
  • End-to-end encryption, passcode protection, and biometric lock
  • Works across web, desktop, mobile, and browser extensions
  • Supports rich media, offline editing, search, filters, and exports
  • Supports Windows, macOS, iOS and Android
  • Offers rich media, mood, location and travel journaling
  • Exports to Word, HTML, JSON and plain text
Cons
  • Cross-device journaling is limited to the Silver plan and above
  • Unlimited photos and videos require a paid plan
  • AI reflection tools are limited to the Gold plan
  • Pro pricing varies by platform and region
  • Advanced features are limited on the Free plan
  • Not open source
Our verdict

Day One is a digital journaling app for recording thoughts, memories, and daily experiences. It supports text entries alongside photos, video, audio, drawings, documents, location context, prompts, reminders, and streaks. Its platform…

Read the review →

Diarium is a personal journal and diary app for recording notes, reflections, photos, videos, audio, locations, moods and travel memories. It supports Windows, macOS, iOS and Android, making it suitable for people who want one journaling…

Read the review →
  1. Day OneJournal Apps 9.4Free plan · 30-day trial
  2. DiariumJournal Apps 9.2Free plan · 7-day trial

Strengths and trade-offs

  • Day One — where it wins

    • End-to-end encryption, passcode protection, and biometric lock
    • Works across web, desktop, mobile, and browser extensions
    • Supports rich media, offline editing, search, filters, and exports

    Where it doesn't

    • Cross-device journaling is limited to the Silver plan and above
    • Unlimited photos and videos require a paid plan
    • AI reflection tools are limited to the Gold plan
  • Diarium — where it wins

    • Supports Windows, macOS, iOS and Android
    • Offers rich media, mood, location and travel journaling
    • Exports to Word, HTML, JSON and plain text

    Where it doesn't

    • Pro pricing varies by platform and region
    • Advanced features are limited on the Free plan
    • Not open source
  • Day One9.4/10 · Free plan · 30-day trial

    A broad, privacy-focused journal with a strong free tier and richer paid features.

    Visit Day OneFull verdict →
  • Diarium9.2/10 · Free plan · 7-day trial

    Diarium combines rich journaling, contextual views, offline access and flexible storage options.

    Visit DiariumFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update