Version 22.0 introduces support for hi-res DSD audio. NEW • App - DSD playback is here. Play your DSD files (DSD64–DSD1024) with bit-perfect DoP output to compatible DACs (up to DSD256), or automatic high-quality PCM conversion at up to 384 kHz on any other output — with per-device output settings. (Premium feature.) • App - A fresh new look. Meet "Waves Midnight," our new default app icon, plus a redesigned launch screen to match. Prefer the classic yellow icon? It's still available in Settings. IMPROVED • Player - Tap the output specs badge (e.g. "DSD64 • PCM") to jump straight to your connected DAC's output settings — and the app now offers a one-time pointer to DSD output options when it detects a USB DAC. • Files - Smarter file sorting: tracks in the Files tab now queue in the right order, even when filenames use unpadded track numbers. • Library - Codec info now clearly labels sample rate. FIXED • Player - Rare crashes during playback when device memory was low. • Player - Input/output spec labels now stay centered when they wrap to multiple lines. • Files - File sync on fresh installs could record an empty destination folder. • Library - Section index navigation in the library for names starting with symbols or non-Latin characters. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

Version 21.3 focuses on stability, reliability, and quality-of-life improvements throughout the app. NEW • Library - New settings under Settings/Library to turn off playback-history and recently-added tracking if you prefer not to track them. • Player - Seek by tapping or dragging anywhere on the progress bar, plus an optional Scrubbing Pause setting for smoother dragging. IMPROVED • Library - Better support for tracks tagged with multiple genres. • Player - Swiping back on the cover art now always plays the previous track. • Player - Cleaner Player and Queue layout, with better handling of longer text in various languages. FIXED • Player - Like/Dislike now correctly toggles your favorite status from the iOS lock screen. • Player - The bottom bar no longer slips under the home indicator after returning from the background. • App - Various stability fixes and crash fixes. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

Version 21.2 focuses on stability, reliability, and quality-of-life improvements throughout the app. NEW • Library - File playlists can now display custom cover art - add an image named to match the playlist file, or a cover image in the same folder. IMPROVED • Player - Synced lyrics now handle backing and simultaneous vocals correctly, and section markers like [Chorus] are no longer hidden. • Player - Play After Current Album - albums you queue up now play in the order you added them, even when shuffle is on. • Player - Volume Normalization: album gain is now used whenever an album plays through in order, so tracks within an album keep their intended loudness relative to each other. • App - Reduced memory usage, especially on older devices. • App - Improved translations on empty library screens across all 34 supported languages. FIXED • Player - fixed a rare crash when seeking during a track change. • CarPlay - fixed a rare crash when starting playback from deeply nested menus. • Player - The elapsed-time display now resets when you clear the queue.

Version 21.1 focuses on stability, reliability, and quality-of-life improvements throughout the app, with major fixes for playback, external file shares, large libraries, and lyrics support. NEW • Custom lyrics for iTunes tracks - You can now add your own synced .lrc lyrics for any song, including iTunes Library tracks that couldn't previously have associated lyrics files. Simply drop lyrics into the new Lyrics folder or use the new "Import Lyrics File…" action. • Hide the slider knob - A new "None" knob size option lets you hide the scrubber and volume thumbs for a cleaner player appearance while keeping the controls fully draggable. This is now the default setting. IMPROVED • Smoother song changes - Improved lyrics loading, reducing brief pauses when switching tracks. • Clearer playback errors - When a FLAC or other audio file cannot be decoded, the player now explains why instead of silently failing to play. • External file share reliability - Mounted folders are now actively monitored for stale connections. The app can automatically repair many issues, provides clear Remount prompts when needed, and highlights affected mounts in the Files tab before playback is impacted. FIXED • Fixed multiple playback crashes, including issues related to gapless preloading, audio route changes, audio configuration changes, fast seeking, and skipping to the previous track. • Fixed a crash that could occur when locking or unlocking the device during background playback. • Fixed a crash that could occur while rotating the device when the play queue or lyrics view was actively scrolling. • Fixed a crash that could occur when scrolling large libraries ("Invalid Number Of Items In Section"). • Fixed a crash that could occur when playing tracks containing unusual or malformed audio formats. • Fixed an issue where favoriting a song could cause album artwork to temporarily revert to the default placeholder image. • Fixed an issue where stale mounted shares could cause songs to become silently unplayable. • Resume position is now saved continuously during playback, helping preserve your place after an unexpected crash or force-quit. • Karaoke lyrics now correctly follow your selected alignment settings. • Previous Track now more reliably decides whether to restart the current song or move to the previous track based on your playback position. • Fixed an issue where the 10-band EQ could overflow the screen on some devices, clipping outer bands and labels. • Fixed an issue where Plus and Max iPhones could incorrectly display the iPad player layout in landscape mode. • Offline Last.fm scrobbles are now automatically retried when launching the app or returning from the background. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

v21.0.1 is a hot fix release. FIXED • App - fixed a crash when initially loading the app with some hidden tabs • Metadata Editor - fixed an issue when under certain circumstances the dismiss and done buttons were hidden If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • Completely redesigned player screen, rebuilt from the ground up. • New audio mixer with 10-band EQ presets and per-track Volume Normalization controls. • Synced lyrics with karaoke-style highlighting, plus full LRC sidecar file support. • Sleep timer, variable playback speed (0.5×-2×), and a richer iPad multi-panel layout. • Faster, smoother, and more accessible - including RTL language fixes and improved VoiceOver. IMPROVED • Codec info gained "Compact Spaced" separator variants for cleaner metadata lines. FIXED • Last.fm scrobbles no longer fail for artists whose names contain "&". • Lots of other bug fixes If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • Player - Fixed a regression issue where audio failed to automatically stop after disconnecting from a Bluetooth or CarPlay device • Player - Fixed a crash when seeking in corrupt or unreadable audio files If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • Library - Added support for reading and writing Explicit/Advisory tags from local audio files (M4A, MP3, FLAC, Opus, OGG) IMPROVED • Search - Improved library and file search to better handle Cyrillic and other non-Latin characters FIXED • Connect - Fixed SMB file browsing failing for folders containing Cyrillic and other non-Latin characters • Player Engine - Fixed several crashes during playback • App - Fixed several random crashes If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • App - fixed issue with app crashing on launch on iOS 15 • Player Engine - fixed issue with audio repeating when down-sampling audio (e.g., 192kHz to 96 kHz) If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • App - fixed issue where app was crashing on launch on iOS 15 • Player Engine - fixed issue where some users were hearing audio skipping If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • Connect - OneDrive - Connect to your OneDrive account with support for browsing, uploading, and downloading files • Connect - Google Drive - Support for multiple Google Drive accounts • Connect - Rename your cloud storage connections from the Edit menu • Connect - Last.fm Scrobbling - Full Last.fm integration to track your listening history • Library - Podcasts & Audiobooks - New media types for podcasts and audiobooks with dedicated filtering, sorting, and metadata options • Library - iTunes Scan Options - Choose between Fast Scan and Deep Scan when manually syncing your iTunes Library • Files - Search - Find files in the current folder and all subfolders • Files - Playback Progress Bar - See playback progress directly in the file list • Files - Folder Thumbnails - Option to display album art as folder thumbnails • CarPlay - Files Tab Progress - See playback progress for the current song in Files • CarPlay - Folder Cover Art - Folder artwork now displays in CarPlay • Settings - Album Art Filenames - Customize which image filenames are used when searching for cover art • Settings - Prefer Image Files - Option to prioritize folder images over embedded artwork • App - Redesigned progress display for library scans, downloads, and uploads with smooth animations • App - Modernized notifications with icons and animations FIXED • App - Fixed several crashes related to context menus, tab management, and sharing • Player - Audio now properly stops when deleting the currently playing file If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • Settings - App Icon Picker - Choose from twelve alternative app icon designs • Library - Added file-based logging for library sync operations to aid troubleshooting - find them in _btramp/logs/ IMPROVED • Settings - Complete rewrite of all Settings screens with improved visual design • Settings - Library statistics section now displays graphical bar charts showing storage breakdown by type • Settings - Song totals now split into Internal/External storage with DRM and Cloud counts as child items • Library - Genre, Artist, Composer, and Playlist screens now feature the same style of header as the Album screen • Player - Volume Normalization - Now uses album gain for consecutive tracks from the same album played in track order, improving listening experience for full album playback • WiFi Transfer - Start button now disabled when device is not connected to WiFi FIXED • Player Engine - Fixed multiple crash scenarios • Player Engine - Fixed audio restart glitch during track transitions with volume normalization enabled • Player Engine - Fixed repeat mode changes not being handled correctly during playback • Playlist - Fixed track removal bugs when deleting items from playlists • Player UI - Fixed random crash when toggling EQ or queue panel on iPad • Player UI - Fixed random crash during device rotation on iPad • iTunes Library - Fixed multiple crash scenarios • App - Fixed crash during background launch when device is locked • Tab Bar - Fixed crash when removing a shortcut tab from the alert handler • Tab Bar - Fixed crash when hiding a tab from Settings If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • App - updated the app icon to include dark, clear, and tint options • Mini-Player - updated to mirror the Liquid Glass look and feel of the tab bar If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • Player - updates to the Now Playing information on the Lock Screen and within CarPlay are now applied more consistently FIXED • Player - fixed multiple random crashes during playback • Library - fixed random crash while viewing the Featured screen • Connect - fixed random crash while connecting to a WebDAV server • App - fixed random crash while parsing In App Purchase receipts If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • Player - fixed issue in the play queue when set to repeat one or repeat all If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • App - improved a couple of translations • Library - improved the display of non-square cover art If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • Library - Fixed a bug that added more than just the selected song when doing a Play Next, Play Last, or Play After Album from the main Songs list If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • App - Improved a couple of translations FIXED • Player Engine - Fixed a bug that kept the play queue from playing any songs in it if a single song existed in the play queue with a sample rate of zero If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

FIXED • Player Engine – Fixed a bug that kept the play queue from playing any songs in it if a single BAD song existed in the play queue. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • “In Progress” Albums – Added a new listing option called “In Progress,” which shows only albums containing at least one bookmarked song. This feature also provides a “Resume Playback” button for each album, allowing you to quickly continue listening from the bookmarked track. IMPROVED • iTunes Library Scanning – Refined the scanning process to prevent albums from being split into separate listings. • WiFi Transfer – Enhanced the interface for a smoother and more polished user experience. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • Library – Enhanced scanning for songs located in mounted iCloud Drive folders. • Localizations – Updated various translations based on user feedback. FIXED • Player Engine – Fixed a crash when attempting to play songs from iCloud Drive that haven’t been downloaded. • Player Engine – Resolved an issue with the play queue that included “local external” audio files (from mounted folders). • Player Engine – Addressed a playback issue affecting tracks with long durations and auto-bookmarks when selected directly from the play queue screen. • Library – Fixed a problem causing repeated re-scans of “local external” playlists. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • iTunes Library: Audiobooks and downloaded podcasts can now be played directly in BTR AMP. Please note that the Apple Books and Podcasts apps remain necessary for managing these files. IMPROVED • Player Engine: The previous limit on the number of songs in the play queue has been removed, offering a more seamless listening experience. FIXED • Library: Resolved issues with flashing cover art during playback and when switching between lists. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • iTunes Library Scanner: Enhanced the performance of the scan process. FIXED • iTunes Library Scanner: Resolved an issue where enabling it for the first time via the Settings/Library screen (instead of through the Onboarding screen) caused problems. • Play Queue Screen: Fixed an issue where pressing the new action button had no effect. • Onboarding Screens: Corrected a problem with text being truncated when iOS font sizes were set higher than expected. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

NEW • App - Localizations - BTR AMP has been translated into 32 additional languages: Arabic (العربية), Catalan (Català), Chinese Simplified (简体中文), Chinese Traditional (繁體中文), Croatian (Hrvatski), Czech (Čeština), Danish (Dansk), Dutch (Nederlands), Finnish (Suomi), French (Français), Greek (Ελληνικά), Hebrew (עברית), Hindi (हिन्दी), Hungarian (Magyar), Indonesian (Bahasa Indonesia), Italian (Italiano), Japanese (日本語), Korean (한국어), Malay (Bahasa Melayu), Norwegian (Norsk), Persian (فارسی), Polish (Polski), Portuguese (Português), Romanian (Română), Russian (Русский), Slovak (Slovenčina), Spanish (Español), Swedish (Svenska), Thai (ไทย), Turkish (Türkçe), Ukrainian (Українська), Vietnamese (Tiếng Việt) • Library - added an action menu button to list rows to compliment the existing long press action menu functionality If you want to switch to a different language and iOS doesn’t automatically select it, open the iOS Settings app. From there, tap Apps, then BTR AMP, then Language under Preferred Language, and choose the language you want. To change back at any time, simply repeat these steps and select your preferred language again. If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.

IMPROVED • Library: Added a new sort order for Songs (Format/Album/Song #) • Settings/Player: Added an option to enable or disable toggling playback by pressing the cover art • Settings/Player: Added an option to enable or disable swiping left/right on cover art to skip tracks FIXED • Library: Reduced unnecessary list refreshes that caused cover art flickering • Library: Restored the long-press menu on iOS 14 and 15 • Library: Fixed a random crash when refreshing Featured screens • Player Engine: Corrected an error in calculating the current playback position If you enjoy using BTR AMP, please consider supporting us by leaving a rating on the App Store. Your feedback matters! BTR Labs is actively planning new features for future versions, so let us know what’s most important to you at support@btrlabs.com.