Gibber helps beginner guitar players turn chord diagrams into muscle memory. Use your iPhone as a touch-friendly practice surface, place each finger on the fretboard, hear the chord, and build confidence before you pick up your guitar. Learn chord shapes Start with beginner-friendly chords like Em, Am, C, G, and D. Gibber shows finger targets, muted strings, and clean strum guidance so practice feels visual and concrete. Practice chord changes Run focused switch tests to slow down, clean up, and track your chord changes over time. Build song roadmaps Save your own chord progressions in Songbook and practice moving from one chord to the next without hunting through notes. Track progress Return to recent practice, review activity, and keep building from where you left off. Gibber is a compact chord trainer for the first steps: learning shapes, reading diagrams, strumming the right strings, and making real guitar practice feel less confusing.