MoodPlayer: Offline Music Map

MoodPlayer is an offline music player for Android that analyses the songs stored on your phone and automatically builds mood playlists. Explore your local library on an Energy × Positivity map, choose a mood channel and start listening — with no account, ads, tracking or audio uploads.

MoodPlayer turns the music already on your phone into mood channels and a map you can explore, without sending a single byte anywhere.

It listens to your tracks the way you would. Tempo, energy, brightness, key and how a song moves are all measured on the phone itself. Your library then sorts itself into channels like Energetic, Relax, Upbeat, Mellow, Emotional, Dance, Lounge and Extreme, plus time-of-day mixes from Morning to Midnight.

EXPLAINABLE, NOT MYSTERIOUS
• See why a track landed where it did: BPM, energy, positivity and how confident the analysis is.
• Track Analysis shows a song's sections and where it sits in your own library.
• "Energetic" means energetic for your music, not by some universal standard. Everything is measured against your own library.

YOU HAVE THE FINAL SAY
• Tell MoodPlayer a track fits a channel, or doesn't.
• Drag a track to a new spot on the Mood Map.
• Exclude anything you never want in a mix.
• Over time it learns the direction of your corrections and adjusts the rest of your library to match. You can switch that off or reset it at any time.

THE MOOD MAP
Every analysed track sits on a map of energy and positivity. Tap a region to play what's there. If you prefer lists, there's a two-slider control as well.

FULLY OFFLINE, FULLY PRIVATE
• No internet permission. The app cannot send your data anywhere, even if it wanted to.
• No account, no ads, no tracking, no analytics.
• Your audio files are only ever read, never changed.

BUILT FOR REAL PHONES
• Runs on Android 8.0 and up, including older and low-memory phones.
• Analysis runs in short background batches, pauses when the phone gets hot or busy, and always steps aside for playback.
• Unchanged songs are never analysed twice, even after you rename or move them.
• Reads music from internal storage, SD cards and folders you pick.

A PROPER PLAYER, TOO
Background playback, lock-screen and headset controls, and a mini-player on every screen.

FREE AND PAID
Eco analysis is free and stays free. It's fast, lightweight and good enough to sort your library into channels.
A single one-time purchase unlocks:
• Smart: detailed multi-excerpt analysis with an on-device model, for sharper channels.
• Deep: reads every track from start to finish, including its structure.
No subscription. Results you already have are always kept.

MoodPlayer plays your local audio files. It does not stream music.