# Fiume

> The thinking notebook: A private iOS note-taking and journaling app that untangles thoughts through deep dialogue with timeless philosophers.

Fiume (developed by Hecara) is an iOS 18+ application combining local-first rich text note-taking, daily waterfall journaling, and philosophical AI mentorship (Insights). Rather than generating superficial conclusions or canned advice, Fiume acts as a thoughtful mentor—listening, probing, and helping users find their own clarity.

## Core Value Proposition

- **The Thinking Notebook**: Note-taking is only the starting point. Fiume brings daily entries and lingering questions into dialogue with historical thinkers.
- **Philosophical Mentorship (Insights)**: Engage in multi-turn Socratic inquiries with 9 distinct philosophical personas (e.g., Socrates, Plato, Aristotle, Confucius, Laozi, Jung, Freud, Kant).
- **Multi-modal Context**: Seamlessly attach existing notes, diary entries, handwritten sketches, and photos into philosophical conversations.
- **Privacy-First & Offline Architecture**: Powered by local SQLite for full offline read/write. Cloud sync is isolated per account. AI features operate under strict Zero Data Retention (ZDR)—user note libraries are never uploaded or used for model training.

## Key Features

- **Notes & Editor**: Markdown-backed rich text editor, inline photo management (up to 25MB), folder hierarchies, pin up to 3 notes, search, and client-side password-encrypted folders.
- **Daily Journal**: Dual-column waterfall timeline organized by calendar day with dedicated calendar navigation.
- **Export & Sharing**: Render notes and dialogue snippets into elegant stationery long images (Warm Paper, Deep Blue, Light Gray).
- **Editor AI Helpers**: In-place text polishing, image generation from text, and AI batch title optimization for timestamped drafts.
- **Security & Access**: Sign in with Apple only, Face ID / Touch ID App Lock, client-side Keychain encryption for locked folders.

## Philosophical Personas (Insights)

- **General Mentor**: Synthesizes multiple intellectual traditions to deconstruct complex dilemmas.
- **Socrates**: Probes underlying assumptions, exposes blind spots, and guides users to uncover their own answers.
- **Plato**: Explores ideals, core values, long-term purpose, and higher-order meaning.
- **Aristotle**: Focuses on practical judgment, habits, moderation, and the golden mean.
- **Confucius (孔子)**: Provides structure for human relationships, ethics, self-cultivation, and actionable order.
- **Laozi (老子)**: Encourages letting go, natural flow (Wu Wei), contentment, and finding strength in stillness.
- **Carl Jung**: Examines life meaning, the shadow self, dreams, and unconscious symbols.
- **Sigmund Freud**: Unpacks emotional motives, inner conflict, desires, and psychological defense mechanisms.
- **Immanuel Kant**: Clarifies moral principles, duty, ethics, and universal consistency in decision-making.

## Platform & Availability

- **Platform**: iPhone (iOS 18.0+)
- **Developer**: Hecara / Zhang Yuxi
- **Pricing Model**: Free tier available (100 credits/month); Fiume Pro monthly subscription via Apple App Store (1,000 credits/month + 3 GB Cloud Storage).
- **Authentication**: Sign in with Apple exclusively.
- **Contact & Support**: support@hecara.com

## Official Links

- [Official Website](https://fiume.hecara.com)
- [llms.txt (中文)](https://fiume.hecara.com/llms-zh.txt)
- [Privacy Policy](https://fiume.hecara.com/privacy)
- [Terms of Use](https://fiume.hecara.com/terms)