Harmonia - Music Mood Journal

Welcome to Harmonia

The app that connects you to the perfect song for your mood, every single time. Whether you’re reflecting on your day, looking for focus, or just need a pick-me-up, Harmonia transforms your emotions into a personal soundtrack.

How It Works

Start with your mood: Open the app and type a quick reflection or choose how you’re feeling from a simple list. Reflective? Energetic? Somewhere in between? Harmonia got you.

Choose your action:


Focus: Find tracks to help you zone in and get stuff done.

Feel: Explore and embrace what you’re feeling right now.

Level Out: Bring yourself back to balance.

Uplift: Boost your spirits with something upbeat.

Personalized playlist: Harmonia uses your input to curate songs tailored to your mood and goals. For an even more personal touch, connect your Spotify account to get recommendations straight from your own music library.


With Harmonia, your daily experiences become a soundtrack made just for you.

Evolving Features That Put You First

Harmonia keeps things simple while adding features that enhance your day-to-day experience:

Mood-Based Music Recommendations: Reflect on your day in the app’s journal, and let Harmonia identify your emotional tone. Your curated playlists match not only how you feel but also what you need in the moment.

Wellness Card: Set daily wellness goals and track how your emotions interact with your overall well-being. Simple insights, big impact.

Mood Calendar & Insights: Use the mood calendar and pie chart to spot emotional patterns over time. Discover trends in how you feel and take charge of your emotional wellness.

Breathing Exercise Widget: Find a quick moment of calm with guided breathing exercises—perfect for a busy day.

Privacy and Security You Can Trust

At Harmonia, we’re serious about keeping your data safe and your experience secure. Here’s what that really means, in plain English:

Anonymous Sign-In: You don’t need to share your name, email, or any personal details to get started. Harmonia uses a secure, built-in anonymous sign-in system to authenticate you safely.

Your Data, Your Choice:

If you decide to upgrade to Pro or link your email, we securely store your logs in the cloud. This ensures you don’t lose your reflections, even if you switch devices.
If you prefer to keep everything local, that’s fine too—your logs stay right on your device.
AI, Done Right:

We use two machine learning models to recommend songs and match your mood. These models are hosted securely on Google Cloud, but here’s the key:

They’re built in-house: The AI is our own creation. No third-party APIs, no external services. Your data never leaves our secure space.

No Selling, No Sharing: Your data is yours, and yours alone. Harmonia does not sell, share, or give away your information to anyone—ever. Period.

With Harmonia, you can enjoy a personalized, AI-powered music experience with full confidence that your privacy is protected.

Join the Harmonia Community
Thousands of music lovers are already transforming their lives with Harmonia. Discover how music can help you reflect, reset, and re-energize—while keeping your privacy safe and sound.

Download Harmonia today and experience music like never before.

Special Thanks
A huge shout-out to Jess Ozcelebi, our UX Designer, whose creativity and attention to detail helped bring Harmonia to life.

Terms of Use
For details, visit https://www.coremusic.dev/terms.

-The Core Music Team