I’ve Been Writing a Diary for 20 Years. Then I Couldn’t Anymore.

I’ve Been Writing a Diary for 20 Years. Then I Couldn’t Anymore.

I’ve kept a diary for over 20 years. That’s not something I say to impress anyone. It’s just something I did. One of the habits which I follow for years.

Almost every day, for a very long time, I sat down and wrote about my day.

Then it got hard.

I don’t mean hard in some dramatic way. I just started missing days. One day missed. Then two. Then a whole week.

The habit that had been part of my life for decades was slipping away, and I could feel it happening but couldn’t stop it.

I tried different things to get back on track. Different apps. Different formats. Nothing stuck. Writing every day had become a chore, and when something becomes a chore, you stop doing it.

Then I tried speaking instead of writing. Started storing as voice notes on iPhone for a few months.

And it worked.

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Talking is easier than writing. That sounds obvious, but I didn’t fully realize it until I tried. When you speak, you don’t worry about grammar. You don’t edit yourself. You just say what happened, how you felt, what’s on your mind. It flows.

The problem was: there was no good tool for this. Nothing that would let me just record my thoughts, turn them into text, and keep them safe. Really safe. Not “we promise we won’t look at your data” safe. Actually safe. On my device. Never leaving my device.

So I built one.

That’s DailyVox.

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What DailyVox Actually Does

The idea is simple. You open the app. You talk. It converts your voice to text. It stores everything on your device.

That’s it. That’s the core.

No account needed. No sign-up. No subscription. No ads. You just open it and start talking about your day.

But the privacy part is what I care about most, and I want to be very clear about it.

DailyVox sends no information anywhere. Not to my server. Not to any server. There is no server. Your entries, your voice, your text — all of it stays on your phone. Apple gave us the “Data Not Collected” privacy label because we literally collect no data.

The AI that processes your voice? It’s Apple’s own Speech and NaturalLanguage frameworks. They run on your device.

The app works offline. You could put your phone in airplane mode forever and DailyVox would work exactly the same.

Your entries are locked behind Face ID. Backups are encrypted with AES-256. If you want to export your data, you can save it to a file and keep it wherever you want. But that’s your choice. The app will never make that choice for you.

I built this because I think privacy in journaling isn’t a feature. It’s the whole point. You can’t be honest in a diary if you think someone might be reading it.

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Then I Realized It Could Be More

When I started building DailyVox, it was just about solving my own problem. Record voice, save text, keep it private. Done.

But as I kept working on it, I started thinking bigger.

If you talk to this app every day — about your thoughts, your decisions, how you react to things, what makes you happy, what frustrates you — it starts to build a picture. A detailed picture. Of you.

That’s when I built the Digital Twin feature.

The Digital Twin learns your personality from your entries. It starts to understand how you think. It can predict your moods. And here’s where my real ambition comes in:

I want the Digital Twin to eventually act like you. Speak like you. Respond like you.

A true digital version of yourself.

I know how that sounds. But think about it. We already leave digital traces everywhere — social media posts, messages, emails. The difference is, all of that is scattered across platforms owned by other companies. None of it is organized. None of it is truly yours.

What if you had one place where you deliberately stored the most honest version of yourself? Not the curated version you put on social media. The real version. The one that talks about bad days and good days and confusing days and boring days.

I believe keeping a digital version of yourself is going to be an important part of the near future. Not in some science fiction way. In a practical way. And DailyVox is built to cover that ambition.

But — and this is the part I won’t compromise on — not by sending your data to a server. Everything works on-device. Your digital twin is yours. It lives on your device. Nobody else has access to it.

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Built With AI, Shipped Fast

I should mention something. Building DailyVox as a solo developer would have taken me much longer a few years ago.

Claude code made this possible. They helped me move fast — from idea to a real app on the App Store in a fraction of the time it would have taken otherwise.

That’s the thing about this moment in technology. One person with the right tools can build something real and ship it.

Why Only iPhone?

DailyVox is on iOS only right now. There’s no Android version.

That’s a deliberate choice. I want to grow the user base on iOS first, get things right, and then consider Android later. But honestly, security is my main concern with Android. Apple gives me strong guarantees — the Secure Enclave, the Neural Engine, the privacy frameworks. The whole promise of DailyVox is that your data never leaves your device. I need to be absolutely sure I can keep that promise before I put it on another platform.

I’d rather be on one platform and keep your data safe than be on two platforms and compromise.

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The Real Benefit I Didn’t Expect

Here’s something I noticed after using DailyVox myself for a while: I talk more now.

When the friction is gone — when you don’t have to type, don’t have to think about structure, don’t have to worry about who might see it — you just talk more. And the more you talk, the more you store about yourself. The more your Digital Twin learns. The more useful the whole thing becomes.

It’s a loop. A good one.

I went from missing diary entries for weeks to recording something almost every day. Not because I forced myself.

Because it’s easy. Because it takes two minutes. Because I just talk.

Twenty years of writing in diaries, and the solution to keeping the habit alive was to stop writing.

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Try It

DailyVox is free. No subscription. No ads. No account. No data collection. Just open it and talk.

If you’ve ever kept a journal and stopped, I think you’ll understand why I built this.

If you’ve never kept a journal because writing felt like too much effort, this might be the version that works for you.

And if the idea of building a private, honest digital version of yourself sounds interesting — that’s where we’re headed.

https://apps.apple.com/app/id6760454642

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I’m Karthikeyan NG, and I built DailyVox because I needed it. Turns out other people need it too.