Guitar Trainer listens to your real guitar and turns chord practice into a game. Play a chord, and the app hears it instantly — no cables, no setup. Just turn on the mic and strum. Whether you're learning your first open chords or drilling barre shapes, every mode is built to get you playing, not just reading. FREE TO START • Simon Chord — a memory game that grows your chord vocabulary round by round • The full practice library: essential chords with clear fingering diagrams and real hand photos, checked by ear as you play UNLOCK EVERYTHING WITH ONE PURCHASE • Cowboy Duel — draw fast and play the chord to win the duel, across 40 levels from single open chords to three-chord sequences • Chord Invaders — blast descending ships by playing their chord before they land, then face boss battles that teach real progressions from pop, blues, jazz and rock • Whack-a-Chord — quick-fire chords as the moles pop up, with saved high scores • Chord Mandala — a generative art mode where the chords you play bloom into evolving geometric patterns WHY GUITAR TRAINER • Real-time detection of the chords a beginner actually learns • Score streaks reward clean playing with ×2 and ×3 multipliers • Everything runs on your device — no account, no ads, no tracking, no internet • Free to start. One single purchase unlocks every game, forever. No subscription. Works with any acoustic or electric guitar. Just you, your guitar, and your phone's microphone.