Privacy Journal.

Thoughts on journaling, deep privacy, and why we'll never use AI to analyze your life.

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Privacy Illusion
Security

Must Read

The Privacy Illusion: Why "Encrypted" Isn't Enough

"Military-grade encryption" is often a marketing buzzword. Learn the difference between encryption in transit and true end-to-end privacy.

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Architecture
Engineering

Deep Dive

Private by Default: The Architecture of Hello Diary

How we built a system where we technically cannot access your data, even if compelled by law.

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Zero Knowledge
Security

Guide

Zero-Knowledge Encryption Simplified

If you lose your password, we can't help you. And that's a good thing. Here's why.

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Hidden Costs
Industry

Opinion

The Hidden Cost of "Free" AI Journaling Apps

If you're not paying for the product, you are the product. How free apps monetize your deepest thoughts.

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Sherpa ONNX
Tech

Tech Stack

On-Device Speech Recognition with Sherpa ONNX

We use open-source technology to transcribe your voice right on your device. No audio ever touches a server.

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Voice Data Investigation
Investigation

Analysis

What Happens to Your Voice Data in Other Apps?

We analyzed the privacy policies of popular voice diaries. The results were disturbing.

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Anxiety
Wellness

Mental Health

Managing Anxiety through Voice Journaling

Speaking your fears out loud can reduce their power. A look at the therapeutic benefits of audio diaries.

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Cloud Backup
Features

Product

Encrypted Cloud Backup: The Best of Both Worlds

Sync across devices without compromising on security. How we solved the convenience vs. privacy dilemma.

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GDPR
Legal

Compliance

GDPR, CCPA, and Privacy-By-Design

Why our architecture makes us automatically compliant with the world's strictest privacy laws.

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Biometrics
Sensitive Data

Security

Your Voice is Your Identity: Protecting Biometric Data

Voice prints are biometric identifiers. We treat your voice recordings with the same security as a fingerprint.

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Therapy
Wellness

Use Case

Your Therapy Notes Deserve Better Protection

People share things with their diary they wouldn't tell anyone else. That data needs fortress-level security.

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Open Source
Community

Transparency

Open Source Speech Recognition: Why Transparency Matters

You shouldn't have to trust us blindly. We use open components so the community can verify our claims.

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Government
Legal

Privacy

Government Surveillance & Your Diary

What happens if the government demands your data? With Hello Diary, we have nothing to give them.

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Offline First
Tech

Reliability

Why Offline-First is the Gold Standard for Privacy

Your journal shouldn't depend on an internet connection. True ownership means it lives on your device first.

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