Cross-platform diary app built with Flutter, from concept to Google Play release.
(Flutter製クロスプラットフォーム日記アプリ - 企画からGoogle Playリリースまで)
| Feature | Description |
|---|---|
| 5 Language Support | 🇯🇵 Japanese, 🇺🇸 English, 🇨🇳 Chinese, 🇰🇷 Korean, 🇪🇸 Spanish |
| Dark Mode | Full dark mode support with system preference detection |
| Offline-First | All data stored locally on device, no cloud dependency |
| Calendar View | Visual calendar with mood indicators and quick navigation |
| Statistics | Writing streaks, mood trends, and activity analysis |
| Search | Full-text search and tag-based filtering |
| Random Entry | Rediscover past entries randomly |
| Data Export/Import | JSON-based backup and restore |
| Category | Technologies |
|---|---|
| Framework | Flutter 3.x, Dart |
| State Management | Provider |
| Local Storage | Hive (NoSQL) |
| Monetization | Google AdMob (Banner Ads) |
| Localization | Flutter intl (ARB files) |
| Architecture | Single-codebase cross-platform |
This app was developed using Claude Code (AI-assisted development tool by Anthropic).
(このアプリは Claude Code（Anthropic社のAI支援開発ツール）を使用して開発しました)
- UI/UX implementation with consistent design patterns
- Multi-language localization (5 languages, 100+ keys)
- Dark mode implementation across all screens
- Bug fixing and code quality improvements
- Google Play Store preparation
- Product concept and feature planning
- Design decisions and user experience direction
- Testing on physical devices
- Google Play Console setup and submission
- Code review and quality assurance
This project demonstrates effective collaboration between human creativity and AI assistance in modern app development.
(このプロジェクトは、現代のアプリ開発における人間の創造性とAI支援の効果的なコラボレーションを示しています)
This is the mobile app version of my earlier web application:
| Version | Platform | Repository |
|---|---|---|
| Web App | Google Apps Script | gas-daily-diary |
| Mobile App | Flutter (Android/iOS) | This repository |
The Flutter version adds offline capability, native performance, and multi-language support while maintaining the same user experience philosophy.
Google Play: Coming Soon (Currently in Closed Testing)
- All diary data is stored locally on your device only
- No cloud sync, no data collection
- Privacy Policy
Built with Flutter and Claude Code