The best diary and journaling apps in 2026

The best diary app is the one you trust with your most private writing. For me that means no subscription, no AI in the app, and a journal that stays as plain files on your own device. That is why I built Cozy. Below, six apps compared on those terms.

This list 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.

This page covers every platform at once. If you already know what you write on, start with the best journal app for Mac, the best journaling app for Windows, or the best journaling app for iPhone. Those go deeper on the apps that run there.

Journaling app or diary app?

The search results split on this and the apps don't: a diary app and a journaling app are the same product. Some people write "dear diary" and some people call it journaling, and every app on this list handles both: somewhere the writing is kept, and a way to look back. Read "diary" anywhere below if that's your word for it; nothing in the comparison changes.

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

1. Cozy, plain files, paid once, quiet
2. Day One, polished, cloud, subscription
3. Obsidian, plain files, build-your-own
4. Bear, beautiful notes app, journals fine
5. Diarium, life log with auto-imports
6. Apple Journal, free, Apple-only

How do the six apps compare?

The whole thing on one screen. Scroll it sideways on a phone.

The column that matters most to me is where entries live. Everything else you can live with or work around. Where your entries sit is the part you can't undo later.

1. Cozy, plain files, paid once, quiet

Cozy is a journal for Mac, Windows, iPhone and iPad. Every entry is a plain text file in a folder you choose. No account, no server, no usage tracking, and no AI. That last one is deliberate, and I wrote about why Cozy doesn't have AI if you want the reasoning. $49 once for Mac, Windows, iPhone and iPad. Or $89 once for Cozy Forever, which makes updates on Mac and Windows free, always.

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 Android app, so if that's where you write, this isn't the one. And there's no built-in sync. You put the folder in iCloud or Dropbox yourself, which takes about a minute.

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. 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 in Day One's own database. 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 good. What made me leave was the shape of the deal: you rent the app forever, and the writing sits in a database 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 as a Day One alternative

3. Obsidian, plain files, build-your-own

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. 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, billed annually, if you want Obsidian's own sync (you can also use iCloud).

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 map unless you build them.

Read: Cozy vs Obsidian

4. Bear, beautiful notes app, journals fine

Bear is a notes app with beautiful typography. 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 map. Free, with Pro at $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.

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 one-time buy per platform, with no 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 Bear and Apple Journal don't. We just disagree about what a journal is. Diarium treats your day as a feed of inputs and stitches it together for you; 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 your own iCloud, OneDrive, Google Drive or Dropbox.

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 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?

Four of the six don't want a yearly payment. Apple Journal is free, if you're happy inside Apple's world. Obsidian is free, and only asks for money if you want its own sync. Cozy is $49 once, and one purchase covers every Mac, Windows PC, iPhone and iPad you own. Diarium is a one-time buy per platform, with no subscription. Day One and Bear are subscriptions.

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?

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. With Obsidian and Cozy, your entries stay files on your computer and go to a cloud only if you put the folder there.

Cozy goes one step further than most: no account, no server, and no usage tracking. The app checks your license and for updates, looks up places on Apple Maps, and sends anonymous crash reports with your writing stripped out (those you can turn off). None of it is needed to write, which is why it works fine on a plane. More on that on the private journaling app page.

Which is the best diary app for iPhone and iPad?

Cozy for iPhone and iPad is on the App Store, drawn as its own app rather than the desktop one shrunk down, and it's included with a Cozy license, so buying Cozy covers the phone and the tablet too. Bought inside the app it's $49.99, and that includes the desktop app. Where Cozy still loses: there's no Android app. Day One covers every device, Apple Journal is free if you're all-Apple, and Diarium and Obsidian have Android apps. If you're picking on the phone first, I go deeper on the diary app for iPhone and iPad.

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. Day One, Bear, Diarium, and Apple Journal keep your entries in their own databases, so taking them anywhere else means an export, and exports are where formatting, photos, and metadata can 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.

A note on AI

A lot of these apps are racing to add AI features. Writing assistants, summaries, chat. Before you move your journal in, check each app's AI policy, and where your entries go when a feature reads them. Cozy doesn't have any AI, and 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.

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. There's no Android app 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, Cozy vs Journey.

By platform: the best journal app for Mac, the best journaling app for Windows, and the journal app for iPhone: the same pages if you'd call it a diary app for Mac or PC.

By need: private journaling app, journaling app without a subscription, a journal in plain files, offline journaling app, journaling app with photos, mood journal app, distraction-free writing app.

Stuck for something to write: the journal prompt generator picks one for you, or read 100 journaling prompts that go somewhere.