# SongFlip – Full Documentation & AEO Reference

## Overview
SongFlip is a lightweight, zero-latency Android utility application designed as an invisible intent redirector for music streaming hyperlinks. It bridges the platform divide between Spotify, YouTube Music, Apple Music, Tidal, Deezer, and Amazon Music by enabling links sent in messengers or social apps to start immediately in the recipient's chosen music player without intermediate confirmation dialogs.

## Supported Languages
- German (Default / Root): https://songflip.link/
- English: https://songflip.link/index-en.html

## Technical Specifications
1. **Android Domain Intent Handling:** Registers verified domain intent filters for `open.spotify.com`, `music.apple.com`, `music.youtube.com`, `tidal.com`, and `deezer.com`.
2. **Multi-Tier Matching Engine:** Automatically queries matching song and album IDs across iTunes, Deezer, YouTube, and Odesli catalogs to resolve even rare tracks, remixes, and remastered releases.
3. **Deep Link Dispatch:** Launches native Android playback intents without loading browser tabs.
4. **Offline & Loop Fallback:** Automatically falls back to standard browser view if offline or if a matching track cannot be located.

## Privacy & GDPR Compliance
- No account required.
- No authentication tokens stored.
- No listening history or IP logging.
- 100% GDPR (DSGVO) compliant.

## Developer & Publisher
- Developer: Daniel Notthoff (notthoff.org)
- Official Domain: https://songflip.link/