Mobile version of SpotiFLAC written in Flutter, powered by a Go backend for high performance. Download Spotify tracks in true FLAC from Tidal, Qobuz, & Amazon Music - no account, no ads, no subscription.
SAF Storage (Android 10+): Proper Storage Access Framework support for download destination (content URIs)
Select download folder via SAF tree picker
Downloads now write to SAF file descriptors (/proc/self/fd/*) instead of raw filesystem paths
Works around Android 10+ scoped storage permission errors
Modern Onboarding Experience: Completely redesigned Setup and Tutorial screens
Added
Home feed disk caching via SharedPreferences for instant restore on app startup
SAF display path resolver in native Android layer (converts tree URIs to readable paths)
New settings fields for storage mode + SAF tree URI
SAF platform bridge methods: pick tree, stat/exists/delete, open content URI, copy to temp, write back to SAF
SAF library scan mode (DocumentFile traversal + metadata read)
Incremental library scanning for filesystem and SAF paths (only scans new/modified files and detects removed files)
Force Full Scan action in Library Settings to rescan all files on demand
Downloaded files are now excluded from Local Library scan results to prevent duplicate entries
Legacy library rows now support file_mod_time backfill before incremental scans (faster follow-up scans after upgrade)
Library UI toggle to show SAF-repaired history items
Scan cancelled banner + retry action for library scans
Android DocumentFile dependency for SAF operations
Post-processing API v2 (SAF-aware, ready to replace v1)
Donate page in Settings with Ko-fi and Buy Me a Coffee links
Per-App Language support on Android 13+ (locale_config.xml)
Interactive tutorial with working search bar simulation and clickable download buttons
Tutorial completion state is persisted after onboarding
Visual feedback animations for page transitions, entrance effects, and feature lists
New dedicated welcome step in setup wizard with improved branding
Changed
Download pipeline supports output_path + output_ext for Go backend
Tidal/Qobuz/Amazon/Extension downloads use SAF-aware output when enabled
Post-processing hooks run for SAF content URIs (via temp file bridge)
File operations in Library/Queue/Track screens now SAF-aware (open, exists, delete, stat)
Local Library scan defaults to incremental mode; full rescan is available via Force Full Scan
Local library database upgraded to schema v3 with file_mod_time tracking for incremental scan cache
Platform channels expanded with incremental scan APIs (scanLibraryFolderIncremental) on Android and iOS
Android platform channel adds getSafFileModTimes for SAF legacy cache backfill
Android build tooling upgraded to Gradle 9.3.1 (wrapper)
Android build path validated with Java 25 (Gradle/Kotlin/assemble debug)
SAF tree picker flow in MainActivity migrated to Activity Result API (registerForActivityResult)
MainActivity host migrated to FlutterFragmentActivity for SAF picker compatibility
Legacy startActivityForResult / onActivityResult SAF picker path removed
Setup screen UI polish: smaller logo, thin outline borders on text fields
Removed support section from About page (moved to Donate page)
Qobuz squid.wtf region fallback for blocked regions
Setup screen converted to PageView flow with animated progress bar and modern card layouts
Tutorial screen aligned with Setup Screen design, updated typography and softened UI shapes
Larger, more accessible navigation buttons for onboarding flow
Reduced visual noise by removing unnecessary glow effects
Fixed
Android 10+ permission denied when writing to /storage/emulated/0 (now handled via SAF)
SAF history repair: auto-resolve missing content URIs using tree + filename
SAF download fallback: retry in app-private storage when SAF write fails
Tidal DASH manifest writing when output path is a file descriptor (no invalid .m4a path)
External LRC output in SAF mode
Restored old-device renderer fallback while using FlutterFragmentActivity by injecting shell args from a custom FlutterFragment (--enable-impeller=false on problematic devices)
Preserved Flutter fragment creation behavior (cached engine, engine group, new engine) while adding Impeller fallback support
SAF tree picker result now consistently returns tree_uri payload with persisted URI permission handling
SAF share file now copies to temp before sharing (fixes share from SAF content URI)
Home feed not updating after installing extension with homeFeed capability (no longer requires app restart)
Library scan hero card showing 0 tracks during scan (now shows scanned file count in real-time)
Library folder picker no longer requires MANAGE_EXTERNAL_STORAGE on Android 10+ (uses SAF tree picker)
One-time SAF migration prompt for users updating from pre-SAF versions
Fixed fileModTime propagation across Go/Android/Dart so incremental scan cache is stored and reused correctly
Fixed SAF incremental scan key mismatch (lastModified vs fileModTime) and normalized result fields (skippedCount, totalFiles)
Fixed incremental scan progress when all files are skipped (scanned_files now reaches total files)
