Huang DingMrPrivateer
中文 / English

App

Day0

A private journal app. Your entries stay on your phone by default.

My role
Solo developer: product, design, iOS, and Android
Team
Solo
Time
Since
Status
On the App Store and Google Play
Platform
iOS and Android
Tools
SwiftUI, Flutter

What this shows

  • On iOS, entries are encrypted on the device, and you can lock the app with Face ID.
  • The iOS app is built in SwiftUI, and the Android app in Flutter.
  • Available in Simplified Chinese, Traditional Chinese, English, and Japanese.
  • Designed, built, and shipped to both stores by one person.

What I did

I set the product direction, designed the interface, and built both the iOS and Android apps. I took every feature from design to launch, from entries and monthly recaps to backup and the app lock. I also took both apps through App Store and Google Play review.

Where AI was used

I used AI coding tools to write the code.