Song Cage vs Udio

Song Cage brings chord, melody, lyric, and music-theory tools together on one songwriting canvas. Its chord palette includes diatonic and borrowed chords, secondary dominants, extensions, and modulation routes, then ranks suggestions against a melody and neighboring chords. The lyric workspace offers rhyme, synonym, semantic, and verb/noun suggestions. The free web plan supports one song and includes playback, audio recording, and song-file export. A Song Cage licence costs $99.00 one-time and adds unlimited songs, PDF chord sheets, MIDI export, Mac and Windows desktop apps, an AU/VST3 plugin, phone captures in an Ideas inbox, collaborators, and web/desktop sync. The desktop app works offline on macOS 12 or later with Apple Silicon or Intel, and Windows 10 or later on 64-bit x64. The free iPhone and Android app captures voice memos, lyrics, and chord ideas offline without an account, but lacks the full editor, timeline, export, and DAW. The plugin streams chord and melody MIDI in sync with DAW transport and saves songs in the DAW project. Song Cage says it does not use AI to write songs; chord suggestions use music-theory rules and word tools use dictionary lookups.

Udio generates songs from prompts describing a style, mood or theme, and each prompt produces two songs. Listed clip lengths are 32 seconds or 2 minutes 10 seconds. The Create page provides sliders and fields for refining tracks, experimenting and generating variations. Its library has search, filters, favorites, playlists and a trash bin for recovering deleted songs, while the player can share songs. Udio offers vocal generation and audio upload, but audio downloads—including stems—are disabled. Paid subscribers can upload audio for extending, inpainting, remixing, stylizing or editing in a waveform-focused Session editor; uploaders must own the rights, and commercial or copyrighted tracks are not allowed. The service is available on the web and iOS. The iPhone app supports track extension but not uploading, remixing, inpainting, styling or title-based song search; Udio says there is no Android app. Free service includes 10 daily and 100 monthly credits. Standard costs $10.00 per month, and Pro costs $30.00 per month.