Your private journaling companion
Write freely.
Reflect deeply.
Luna is a mindful journaling app that listens as you write, detects your emotional patterns, and offers gentle AI-powered reflections to guide your self-discovery.
Why Luna
Journaling, reimagined
More than a notebook. Luna is a companion that understands your emotional landscape.
AI-Powered Reflections
Luna reads your entries and offers thoughtful, personalized reflections that help you see your thoughts from a new perspective.
Real-Time Mood Detection
As you write, Luna gently detects your emotional tone across 9 mood categories, helping you build emotional awareness.
Completely Private
All AI processing happens on your device using Apple's FoundationModels. Your journal never leaves your phone.
How It Works
Your journey with Luna
Meet Luna
Luna introduces herself as your private companion and learns what to call you.
Write Freely
Pour your thoughts out. Luna listens in real-time, detecting your moods as you type.
Reflect & Grow
Luna offers gentle reflections and thought-provoking questions to deepen your self-awareness.
Beautiful by Design
A calm space for your thoughts
Warm colors, gentle typography, and a distraction-free interface designed to make journaling feel natural.
Your thoughts stay yours
Luna uses Apple's on-device AI through the FoundationModels framework. Your journal entries are never sent to external servers. No cloud processing, no data collection, no compromises. Everything happens privately on your iPhone.
Begin your journey
Download Luna and start building a deeper relationship with your thoughts. Free on the App Store.
Download on the App Store