ZetrixwebFully Offline Playback
Scans and plays local audio only - no streaming, download, or online search of any kind.
Case Study · Indian Music Player
Indian Music Player: an offline-first player, done properly.
No streaming, no search, no account - by design. Indian Music Player organizes and plays whatever's already on the device, with a 5-band equalizer and full lock-screen control. It holds a 4.9-star rating on Google Play.
4.9★ Play Store rating
100% offline playback
No data shared with third parties
The Product, As Shipped
Real screens from the live app.
The Brief
Make a local audio player that works with zero connectivity.
The brief was almost a constraint list: play local audio files only, never touch the network, never ask for an account, and make an equalizer that actually does something audible. Browsing by album, artist, or playlist; the sleep timer; the lock-screen transport controls - all of it had to work the same whether the phone had signal or not.
What We Built
Offline playback, a real equalizer, and full media controls.
5-Band Equalizer
Adjustable 60Hz-14kHz bands with preset and custom modes, plus a widget and lock-screen media controls with album art.
Playlists, Sleep Timer & Background Play
Custom playlists, a sleep timer, and uninterrupted background playback with next-track previews.
Outcomes
Small app, near-perfect record.
Indian Music Player does one job and does it reliably - and the reviews reflect that. No streaming means no buffering, no account means no friction, and the equalizer actually changes what you hear.
4.9
★★★★★
Google Play rating
Verify on Google Play
500+Downloads on Google Play
5Equalizer bands, 60Hz to 14kHz
0Network requests made by the player
0Data shared with third parties
Building a media or offline-first product?
Local-first apps, real DSP work, no shortcuts on the audio path - we've built that before.