NexPlay: Free MP3 Player

NexPlay is a 100% free, offline-first music player. No ads. No tracking. No internet. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━ Audio Extension Filter Choose which formats to display — MP3, WAV, OGG, FLAC, AAC, M4A, WMA, OPUS, AMR, MIDI, 3GP. Detects available formats automatically. Shows file count per format. Multi-Band Equalizer Visual presets: Normal, Rock, Pop, Jazz, Classical, Dance, Bass Boost, Treble Boost, Vocals, Acoustic, Hip Hop, Electronic. Real-time band adjustment. Samsung SoundAlive compatible. 13-band display. Playback Controls • Shuffle with history — Previous plays what actually played last • Shuffle survives filter changes (song ID-based history) • Repeat All / One / Off • SeekBar with real-time position and remaining time display • Sleep Timer (5, 10, 15, 30, 60 min, or remaining song time) • onPlayerError auto-skips corrupted files • Crossfade — smooth volume fade on song transitions Playlists & Favorites Create, rename, delete playlists. Add/remove songs. Favorite songs with one tap. All stored locally. Multi-Volume Scanning Scans internal storage + SD card automatically. Deduplicates songs by ID. List refreshes when returning to app (30s cache). Visual Themes 14 animated themes: Ocean Waves, Particles, Aurora, Vinyl Record, Graffiti Tag, Graffiti Character, Graffiti Splash, Graffiti Morph, Aquarium, Vortex, Cats, Green Fabric, Blue Fabric, Yellow Fabric. Plus solid color, gradient, or custom photo backgrounds. ━━━━━━━━━━━━━━━━━━━━━━━━━━━ ACCESSIBILITY ━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Lexend font — scientifically designed for fast reading • All fonts ~40% larger than standard • Dark mode only — easy on the eyes • High contrast text for currently playing song ━━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Zero INTERNET permission • No analytics, no tracking, no ads • 100% local — all data stays on your device ━━━━━━━━━━━━━━━━━━━━━━━━━━━ TECHNICAL ━━━━━━━━━━━━━━━━━━━━━━━━━━━ • 20 languages • Edge-to-edge on Android 15+ • Tablet landscape support (letterbox) • Phone portrait locked • Android 10+ (minSdk 29) • Target SDK 35 (Android 15)