NoteHound vs Chord Invaders

NoteHound is the music practice app for musicians who learn by ear. Slow any song to 0.1× without dropping the key. Loop the trickiest bar with sample-accurate A-B markers and a count-in click. Transcribe what you hear onto a piano roll, a 4-to-8-string guitar tab, or a live fretboard. Export to MIDI, PDF, MusicXML, plain-text tab, or a ZIP bundle for your teacher. No subscription. No account. Your audio and your transcriptions stay on your device. FEATURES SLOW DOWN MUSIC • 0.1× to 3.0× variable speed • Pitch-preserving time-stretch — the key never changes, even at the extremes • Speed ramp: automatically walk a loop from slow to performance tempo over n repetitions • Tap tempo and BPM detection • Tempo-map aware — handles songs that change tempo A-B LOOPING & PRACTICE TOOLS • Sample-accurate loop boundaries on the waveform • Count-in beats and pre-roll bar so you join the loop on the downbeat • Per-loop speed settings • Named sections (verse / chorus / solo / bridge) painted onto the waveform • Audio notes — pin a voice memo anywhere on the waveform (a fingering cue, a practice reminder, a note from a teacher) and the recording auto-plays when the playhead reaches that point • Practice tracking with mastery stages: learning → practising → up-to-speed → mastered • Per-loop attempt history with max-speed-reached PIANO ROLL EDITOR • Tap notes onto a quantised grid; drag, multi-select, group, draw • Audio sync — your transcription follows the recording bar by bar • Independent display transpose so you can read in any key • Plays through nine built-in synth voices LIVE FRETBOARD VIEW • Tap a note, see exactly where it lives on the neck • Multi-string highlighting for chord shapes • Adapts automatically to the project's tuning (standard, drop D, drop C, DADGAD, baritone, 7- and 8-string) • Full-fingerboard or focused-range display • Pairs with the tab editor — every note tapped on the tab lights up on the fretboard, and vice versa GUITAR TAB EDITOR • 4 to 8 strings, any tuning • 25+ articulations: bends, slides, hammer-ons, pull-offs, harmonics, palm mutes, ghost notes, dead notes, vibrato, trills, grace notes, tied notes, let-ring • Automatic fret-position suggestions based on the previous and next notes • Audio sync with the recording so the tab cursor tracks playback • Works for guitar, bass, baritone guitar, 7- and 8-string electric, ukulele 9-INSTRUMENT MULTI-TOUCH KEYBOARD • Acoustic piano, electric piano, Rhodes, organ, synth pad, strings, bass, guitar, vibraphone • Velocity-sensitive on supported devices • Doubles as a real-time MIDI-input target MIDI • Class-compliant USB and Bluetooth MIDI controllers — plug in, no drivers, no setup • Learn-mode mapping for any control to any parameter (foot pedal → play/pause, knob → speed, pad → loop toggle) • Real-time note input straight to the piano roll • MIDI file import preserves notes, tempo map, and section markers EXPORT • MIDI, PDF, MusicXML, plain-text tab, .tab, or a ZIP bundle of all of them • Hand a transcription to any DAW or notation app: Logic Pro, Ableton Live, Sibelius, Dorico, MuseScore, Finale, Guitar Pro FREE vs PRO Free includes two starter projects, basic A-B looping, the on-screen keyboard, and the 0.25× to 1.5× speed range. NoteHound Pro is a one-time $4.99 unlock — no subscription, restore on every device with the same Apple ID. Pro adds: • Unlimited projects • Full 0.1× to 3.0× speed range • Piano roll editor • Guitar tab editor + live fretboard view • MIDI input and MIDI file import • Every export format • Speed ramp, named sections, audio notes per section DESIGNED FOR Self-taught guitarists, pianists, and bassists. Music students. Music teachers preparing materials. Producers reverse-engineering a sample. Drummers learning fills. Anyone who learns songs by ear. Requires iPhone or iPad on iOS 17 or later. No account needed.

Chord Invaders is a chord-detection game for acoustic and electric guitar. Chord names fall from the top of the screen — play the chord on your real guitar before it reaches the bottom and watch it explode. The app listens through your iPhone's microphone and recognizes what you play in real time. Hit chords earn points. Missed chords cost lives. SEVEN LEVELS, ORGANIZED BY KEY • Level 1: G major (G, C, D) • Level 2: G expanded (adds Em) • Level 3: C major (introduces F) • Level 4: D major (introduces Bm barre) • Level 5: E major blues (A, E, B7, C#m) • Level 6: Mixed minor keys (Am, Dm, E, F, G, C) • Level 7: Color chords (7ths, sus chords, Cadd9) PER-CHORD FEEDBACK After each session, see your accuracy per chord, average reaction time, and a personalized recommendation telling you what to practice next. CHORD DIAGRAMS Every level shows the chord shapes — finger positions, frets, and barre lines — alongside a short note on the music theory behind why those chords are grouped. BUILT-IN TUNER A vertical-bar guitar tuner helps you get in tune before you play. PRIVACY No accounts, no logins, no analytics. Audio is processed entirely on your device and never recorded or transmitted.