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.
What actually matters in a journaling app?
Features lists all look the same after a while. These are the five things that decide whether you'll still have your journal in ten years:
- 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
How do the six apps compare?
The whole thing on one screen. Scroll it sideways on a phone. I've tried to be fair here — where another app does something better than Cozy, it says so.
| App | Price model | Where entries live | Offline | Platforms | Sync |
|---|---|---|---|---|---|
| Cozy | One-time — $35 desktop, $19 mobile | Plain text files in a folder you pick | Yes — there's no server to reach | Mac, Windows (mobile coming) | You set it up: iCloud Drive, Dropbox, or any folder sync |
| Day One | Subscription — $49.99–$74.99 / year | Day One's servers, own format, end-to-end encrypted | Sync needs a connection | Mac, Windows, iOS, Android, web | Built in and handled for you |
| Obsidian | Free for personal use · Sync $48 / year | Plain text files in a folder you pick | Yes — files are on your disk | Mac, Windows, Linux, iOS, Android | Obsidian Sync, or iCloud Drive / Dropbox yourself |
| Bear | Subscription — $2.99 / month or $29.99 / year | Bear's own database, exports to files | Sync needs a connection | Apple only — Mac, iPhone, iPad | Built in through iCloud, included in Pro |
| Diarium | ~$9.99 once per platform + optional Premium | Diarium's own database | Sync needs a connection | Mac, Windows, iOS, Android | OneDrive, Google Drive, Dropbox, or Diarium Cloud |
| Apple Journal | Free | Inside Apple's Journal system | Sync needs a connection | Apple only — iPhone, Mac | iCloud, automatic |
The row that matters most to me is the third one. Everything else you can live with or work around. Where your entries actually sit is the part you can't undo later.
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, $19 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: two of them, and they're real. There's no mobile app yet — it's coming, but today Cozy is a desktop journal, so if you write on your phone in bed, this isn't the one. And there's no built-in sync. You put the folder in iCloud Drive or Dropbox yourself, which takes about a minute but is a minute Day One doesn't ask of you.
Get Cozy → · Cozy vs Day One · Cozy vs Obsidian · Cozy vs Bear
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.
I used Day One for a while and I don't have a bad word to say about the craft. The sync is invisible, the free Basic tier is limited but usable, and the end-to-end encryption is genuinely good rather than a marketing line. What made me leave was the shape of the deal: you rent the app forever, and the writing sits somewhere you don't control, in a format only Day One reads. It runs everywhere, though — Mac, Windows, iOS, Android, and the web — so availability isn't the reason to look elsewhere.
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).
Cozy borrows a lot from Obsidian — files on your computer, no account, no cloud lock-in — and on the thing I care most about, the two are the same: your writing is already a folder you can open in any editor. The difference is how much it asks of you. Obsidian hands you a workshop; you choose the folder structure, the tags, the templates, the plugins. Some people love that. I found it was a lot to decide when all I wanted was to write something down before bed. Obsidian also has no calendar, no mood, no moments timeline unless you build them.
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.
Worth knowing: Bear keeps notes in its own database and exports to plain files, rather than writing plain files from the start, and its sync runs through iCloud as part of Pro.
Read: Cozy vs Bear
5. Diarium — life log with auto-imports
Diarium runs on Mac, Windows, and mobile, 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.
Diarium is the closest thing here to Cozy on paper — daily entries, photos, mood, a calendar, no yearly subscription required, and it runs on Windows too, which most of this list doesn't. We just disagree about what a journal is. Diarium treats your day as a feed of inputs and stitches it together while you sleep; Cozy treats your day as the thing you sat down and wrote. The practical difference is the database: Diarium's entries are inside the app with export as the way out, and it syncs through OneDrive, Google Drive, Dropbox, or its own Diarium Cloud.
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.
Apple got a lot of this right, and the privacy claims are not marketing — entries are encrypted on device and in iCloud. Two things kept me out. It started as an iPhone app and the Mac version still feels shaped like one, and your journal is tied to an Apple ID, so the day you sit down at a Windows machine it isn't there. Later versions added export, which helps, but export is still a step between you and your own writing.
Read: Cozy vs Apple Journal
Which journaling app is best without a subscription?
Three of the six don't want a yearly payment. Apple Journal is free, if you're happy inside Apple's world. Obsidian is free for personal use, and only asks for money if you want its own sync. Cozy is $35 once for desktop — one license covers every Mac and Windows machine you own — and $19 once for mobile when it lands. Diarium sits in between: a small one-time buy per platform, with a Premium subscription for the extras. Day One and Bear are subscriptions, full stop.
If that's your whole criterion, I wrote a page on journaling apps without a subscription that goes into the maths of one-time versus yearly.
Which journaling app is the most private?
Privacy is one of those words every app claims, so here's the plain version. Day One and Apple Journal both encrypt your entries, and I believe both of them — but the entries are still on a server somewhere, held by a company, reachable by an account. Bear and Diarium sync through iCloud and various cloud drives. Obsidian and Cozy are the two where nothing leaves your computer unless you decide it does.
Cozy goes one step further than most: no account, no server, and no telemetry — the app doesn't phone home at all, so there's no analytics trickle to opt out of. That's also why it works fine on a plane. More on that on the private journaling app page.
What about journaling on your phone?
This is the honest weak spot in my list. If your journaling happens on a phone in bed, Day One is the best of these by a distance, and Apple Journal is the free option if you're on iPhone. Diarium and Obsidian both have mobile apps too. Cozy is desktop-only today — Mac and Windows — with a mobile app coming at $19, once. I'd rather say that plainly than have you buy and be disappointed.
What happens to your journal if the app shuts down?
This is the question I built Cozy around, and it separates the list cleanly. With Cozy and Obsidian, nothing happens: your entries are already plain text files in a folder on your disk, and you keep the folder. With Day One, Bear, Diarium, and Apple Journal, you have to export before you lose access, and exports are where formatting, photos, and metadata quietly go missing.
None of these companies are about to disappear. But a journal is a twenty-year object, and twenty years is long enough for apps to get acquired, change direction, or drop a platform. Plain text is the only format I've seen outlive all of that.
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.
So which journaling app should you pick?
If subscriptions are fine and you want the most polished experience across every device, Day One is the safe pick. Nobody here does sync better.
If you want plain files and you're happy to build your own setup, Obsidian is the deepest tool, and free for personal use.
If you're all-Apple, mostly write on your phone, and want to spend nothing, Apple Journal is a fine, quiet choice.
If you want your journal to fill itself in from your steps, photos, and posts, that's Diarium, and no one else on this list is trying to do it.
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. It's desktop-only for now and you set up your own sync, and if that's a dealbreaker, one of the five above will serve you better. I'd rather you end up with the right journal than with mine.
Head-to-head: Cozy vs Day One, Cozy vs Obsidian, Cozy vs Bear, Cozy vs Diarium, Cozy vs Apple Journal.
By platform and by need: journaling app for Mac, journaling app for Windows, Markdown journaling app, offline journaling app.