Chord Finder: Song Practice

From the App Store Source

Find the chords in a song and follow them while you play. Chord Finder analyzes audio entirely on your iPhone or iPad. IMPORT OR RECORD Open an audio file from Files, or record music with the microphone. Common formats include MP3, M4A, WAV, and AIFF. Microphone access is optional for file import. FOLLOW THE SONG See the current chord, chord tones, estimated key, and tempo. A moving playhead follows the chord timeline. Tap a chord or move the playback slider to practice a section again. Use Follow to keep the playing row in view. SAVE YOUR PRACTICE Save projects with their audio and chord analysis. Search by name and reopen a song without analyzing it again. Swipe to delete a saved project. MADE FOR IPHONE AND IPAD Practice in portrait or landscape. The screen stays awake while audio plays with the app visible. PRIVATE BY DESIGN Audio analysis runs on your device with a bundled model. No account, ads, tracking, subscription, or audio upload. Your saved projects stay in app storage and may be included in device backups according to your Apple settings. Chord, key, and tempo results are estimates. Clear accompaniment gives better results; complex mixes can be harder to identify. Chord Finder analyzes chords, not vocal or lead melodies. Supports mono/stereo recordings up to two hours. Requires iOS/iPadOS 17 or later.

Every number in these answers comes from the data shown above on this page.