Most "best journaling app" lists are SEO pages by people who haven't opened the apps. This one is by me, Alberto. I built Cozy because I couldn't find a journal I trusted to last twenty years. Before that, I used most of the apps on this list for real.
How I'm comparing them
The criteria I actually care about:
- Where your writing lives (your computer vs. their server).
- What format it's in (plain files vs. proprietary database).
- How you pay (once vs. forever).
- What it asks of you (zero setup vs. a system to maintain).
- What happens if the company goes away.
The shortlist
- Cozy — plain files, paid once, quiet
- Day One — polished, cloud, subscription
- Obsidian — plain files, infinite customization
- Bear — beautiful notes app, journals fine
- Diarium — life log with auto-imports
- Apple Journal — free, Apple-only
1. Cozy — plain files, paid once, quiet
Cozy is a desktop journal for Mac and Windows. Every entry is a plain text file in a folder you choose. No account, no server, no telemetry, and no AI — that last one is deliberate, and I wrote about why Cozy doesn't have AI if you want the reasoning. $35 once for desktop, $12 once for mobile.
Best for: people who want a journal that will still work in twenty years, in a format any computer can read, with no subscription.
Trade-off: no built-in sync (use iCloud Drive or Dropbox).
Get Cozy → · Cozy vs Day One · Cozy vs Obsidian
2. Day One — polished, cloud, subscription
Day One is the most well-known journaling app, and for good reason — it's polished, has apps on every platform, syncs everything for you, and adds photos, video, audio, and location to entries.
Best for: people who want one journal across iPhone, iPad, Mac, Apple Watch, and don't mind paying every year.
Trade-off: $49.99/year for Silver or $74.99/year for Gold. Entries live on Day One's servers in a proprietary format — if you ever leave, you have to export.
Read: Cozy vs Day One
3. Obsidian — plain files, infinite customization
Obsidian is a notes app that a lot of people use as a journal. It stores notes as plain text files, runs on every platform, and is free for personal use. The community is huge and the plugin ecosystem is deep.
Best for: people who want to build their own system — folders, tags, links, templates, plugins.
Trade-off: it doesn't ship as a journal. You build the journal inside it. Sync is a $4/month add-on if you want Obsidian's own sync (you can also use iCloud Drive).
Read: Cozy vs Obsidian
4. Bear — beautiful notes app, journals fine
Bear is a notes app with some of the best typography on the market. Some people journal in it and it works. It's Apple-only.
Best for: people on iPhone and Mac who want a beautiful notes app that can hold journal entries alongside everything else.
Trade-off: it's a notes app, not a journal. No calendar, no mood tracking, no moments timeline. Subscription: $2.99/month or $29.99/year.
For the record: I still use Bear every day for notes — it's my favorite notes app. It just isn't a journal. You can't pick a date for a note, can't go back and write into a specific day, no calendar.
Read: Cozy vs Bear
5. Diarium — life log with auto-imports
Diarium runs on every platform and pulls things into your journal automatically — social posts, photos, steps, weather, location. If you want a journal that fills itself in while you sleep, this is the one.
Best for: people who like the idea of a journal that captures everything they did across apps and devices.
Trade-off: entries live inside Diarium's database, not as files you own. Pricing is a small one-time buy per platform plus an optional Premium subscription.
Read: Cozy vs Diarium
6. Apple Journal — free, Apple-only
Apple Journal is Apple's own journaling app. It started on iPhone and arrived on Mac later. It's quiet, free, and lives inside your Apple ID and iCloud.
Best for: people who live entirely inside Apple's world and mostly journal on their iPhone.
Trade-off: Apple-only. Entries live inside Apple's Journal system, not as files you can open in any text editor.
Read: Cozy vs Apple Journal
Quick comparison table
| App | Pricing | Files you own | Platforms |
|---|---|---|---|
| Cozy | $35 once · $12 mobile | Yes — plain text files | Mac, Windows |
| Day One | $49.99–$74.99 / year | No — server, export needed | Mac, iOS, Web |
| Obsidian | Free · $48/yr sync | Yes — plain text files | All |
| Bear | $2.99/mo or $29.99/yr | Partial — database, exports | Apple only |
| Diarium | ~$10 once per platform + Premium | No — database | All |
| Apple Journal | Free | No — Apple system | Apple only |
A note on AI
A lot of these apps are racing to add AI features. Writing assistants, summaries, chat. Most of those don't run on your computer — they send your entries to OpenAI, Anthropic, or another model provider, because the app is really a wrapper around their API. If that bothers you, it's worth checking each app's AI policy before moving your journal in. Cozy doesn't have any AI for that reason — here's the full reasoning.
My honest recommendation
If subscriptions are fine and you want the most polished experience, Day One is the safe pick.
If you want plain files and you're happy to build your own setup, Obsidian is the deepest tool.
If you want a journal that opens on today, asks how you're feeling, keeps every entry as a file you own, charges once, and gets out of your way — that's what I built Cozy to be.