Karthikeyan NG makes DailyVox in Bengaluru, and he and I agreed to mention each other's apps, so you should know that going in. The facts about DailyVox here come from its site, its App Store listing and its privacy policy.
The short version
| What | DailyVox | Cozy |
|---|---|---|
| An entry starts by | Talking, or typing if you can't | Writing, or dictating on Mac and iPhone |
| AI | On your device, on iPhone it builds a model of you | None |
| Where entries live | A database inside the app | Plain text files in a folder you picked |
| Server and account | None | None |
| Sync | Your own iCloud, off by default | Yours to choose: iCloud Drive, Dropbox, any folder |
| Price | Free, open source | $49 once |
| Runs on | iPhone, iPad, Android | Mac, Windows, iPhone, iPad |
| If the app goes away | In the app's database, until you export | Open your folder |
DailyVox prices and platforms checked November 2026.
What DailyVox does
You speak for 42 seconds, or as long as you like, and the app transcribes it on your device. If you can't talk, you can type instead, and that counts as an entry too. There's a widget for the Home Screen, and on iPhone the transcription works in more than 60 languages.
Then comes the part that makes it its own thing. On iPhone, each entry feeds a Digital Twin, which DailyVox describes as an AI model of your personality and inner world. It reads sentiment, forecasts your mood, and on recent iPhones you can ask it questions. The Android app is younger: English only, with no AI chat, health data or photos yet.
What Cozy does
Cozy is for people who think by typing. You open it, you write, and the entry lands as a file in a folder on your computer or phone. It has a calendar, photos, tags and search, and it runs on a desktop with a real keyboard for the long entries. You can dictate on Mac or iPhone if you'd rather talk, but what you get is text. Nothing learns from it or tells you what it means.
Where your journal lives
This is where the two apps agree, and it's rare. DailyVox has no servers and no account, and it says it makes zero outbound requests. Its App Store label reads Data Not Collected. The Android app doesn't even ask for internet permission. iCloud sync is optional and off by default, and it runs through your own account.
Cozy has no server and no account either. The difference is the shape of what you keep. DailyVox holds entries in a database inside the app, and you take them out by exporting: PDF, JSON, Markdown, CSV or an encrypted backup. Cozy has nothing to export. The entries are already plain text files you can open in Finder or Explorer, or read in TextEdit or Notepad, with Cozy closed or gone.
Cozy has no sync service of its own. To use more than one device, you put the journal in an iCloud or Dropbox folder. On iPhone it uses iCloud Drive.
Pricing
DailyVox is free, with every feature included, no in-app purchases and no subscription. It's open source under the MIT license, so you can read the code yourself. That's hard to argue with, and I won't try.
Cozy is $49, once, for every Mac, Windows PC, iPhone and iPad you own. You can try it free for 7 days with every feature, and if it isn't for you, I refund it in full within 14 days.
Where DailyVox is better
If you won't sit down and type, DailyVox is the one. Talking for 42 seconds on the walk home is a much smaller ask than a blank page, and an entry that gets made beats one that doesn't. It's free, you can read its code, and it runs on Android, where Cozy doesn't. And if you want patterns found for you, it finds them without sending your diary anywhere.
Where Cozy is better
If you write long, Cozy is built for it. It runs on your Mac and your PC, and your journal sits there as ordinary files that will open in twenty years without either of us. If you're leaving Day One, the years you've already written come along.
Moving your journal
You can export from DailyVox as Markdown, but Cozy has no importer for it, so nothing brings those entries across in one step. Cozy does import from Day One, Obsidian, Bear and Notion.
About AI
On-device AI is a serious answer to the privacy problem, and DailyVox takes it further than most. Cozy still has none, on purpose. I wrote up why Cozy doesn't have AI. For me it isn't only about where the model runs. I don't want anything reading along in the place where I write the most private things I write. Because Cozy's files are plain, you can still hand them to any AI tool you choose. That stays your call.
So which one is for you?
If you'd rather talk than type, you want an app that learns from what you say, or you're on Android, try DailyVox. It's free, so it costs you nothing to find out.
If you write to think, you want your journal on your computer too, and you want entries as files that nothing reads, Cozy is the better fit.
Comparing other apps? Read Cozy vs Day One, Cozy vs Apple Journal, Cozy vs Journey, or Cozy vs Natus.
“I've been using it for a week and I do not regret the purchase at all! :) Very solid, intuitive and aesthetic. I synced with two of my computers to be able to access it from bed, which is where I like to do my digital journaling, and works like a charm. I hope your app continues to grow!”
u/sorabood