Topic

Privacy

4 articles

A smartphone displaying a blurred app switcher screen with a FaceID prompt for ViviDiary, demonstrating lock screen hidden app ux for private diaries.

Blog

Jun 17, 20267 min read

Designing Lock Screen Hidden App UX for Private Diaries

How we integrated native hidden app UX to stop physical snooping, and why true privacy relies on cloud de-identification and data minimization.

Ethan ColeRead

Blog

A person holding an iPhone, pressing the Action Button and tilting the device to log their mood using gesture-based mood logging on iOS 27.

Blog

Jun 15, 20268 min read

Why We Built Gesture-Based Mood Logging for iOS 27

Discover why ViviDiary killed traditional forms in favor of gesture-based mood logging in iOS 27, cutting entry time to under 3 seconds.

Ethan ColeRead

Blog

A technical diagram sketched on a whiteboard showing cloud-based LLM memory architecture with vector embeddings and secure cloud storage.

Blog

May 17, 20268 min read

Building Vividiary's Memory: LLM Architecture for Diaries

We tested multiple ways to give our AI journal long-term memory. Here is why we rejected standard context windows and built a privacy-first cloud architecture instead.

Ethan ColeRead

Blog

A smartphone displaying a mood logging app interface with colorful emotion icons, resting on a wooden desk next to a cup of coffee and a notebook.

Review

May 2, 20268 min read

Best Mood Logging Apps 2026: A 30-Day Emotional Journal Review

Looking for a daily mood tracker that actually works? I spent 30 days testing the top apps for this emotional journal review to help you find the right fit.

Olivia BennettRead

Journaling Tips