BookPlayer vs Chirp

BookPlayer is an audiobook player for DRM-free audiobooks, available on iOS, Android, and macOS. It plays M4B, M4A, MP3, and FLAC files, with chapter navigation, speed controls, smart rewind, volume boost, and an adjustable sleep timer. Library tools track progress, mark books finished, sort titles, and organize them into playlists or folders. Audiobooks can be imported through AirDrop, Files, iTunes File Sharing, ZIP archives, or personal Audiobookshelf and Jellyfin servers. On Android, users can also download or stream from those servers, including through Quick Connect and single sign-on. BookPlayer supports Audiobookshelf and Jellyfin, and automatic library tracking on Hardcover. VoiceOver support is listed for iOS and TalkBack for Android. The free plan includes core playback. BookPlayer Pro adds cloud sync, standalone Apple Watch playback, themes, and alternative app icons. Pro stores library files, progress, and bookmarks on its servers; its subscription is payable monthly or annually, with the price displayed in the app. The iOS project is licensed under GNU GPL version 3.0.

Chirp has no write-up on Specifiction yet; its figures are above.