Chord Invaders vs Jazzr
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Chord Invaders
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Chord Invaders is a chord-detection game for acoustic and electric guitar. Chord names fall from the top of the screen โ 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 โข Level 1: G major (G, C, D) โข Level 2: G expanded (adds Em) โข Level 3: C major (introduces F) โข Level 4: D major (introduces Bm barre) โข Level 5: E major blues (A, E, B7, C#m) โข Level 6: Mixed minor keys (Am, Dm, E, F, G, C) โข 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 โ finger positions, frets, and barre lines โ 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.
Jazzr
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Jazzr is a practice tool built for guitarists serious about jazz. Chord Voicings Generate drop 2, drop 3, triads, shell voicings, guide tones, and quartal shapes across all string sets and inversions. Harmonize any key across all 7 diatonic degrees with a voice leading optimizer that minimizes hand movement between chords. Build custom progressions with the palette editor. Scales 25+ scale types across CAGED, 3NPS, and 3:2 systems. Covers major modes, melodic minor, harmonic minor, pentatonics, blues, and symmetric scales. View a single position or all positions at once. Label by notes, intervals, or fingering. Arpeggios Triad, seventh, and extension arpeggios in position and diagonal 2NPS layouts. Harmonized arpeggios across all 7 diatonic degrees. Practice Tools - Chord Analyzer: detect any chord shape on a 20-fret fretboard in real time. - Harmony Analysis: identify chord functions with Real Book notation and cadence analysis. - Harmony Lab: drill ii-V-I cadences and voice leading. - Guide Tones: ear training focused on thirds and sevenths through progressions. - Reharmonization: explore and drill substitution techniques. - Circle of Fifths: interactive wheel with mnemonics and quizzes. - Rhythm Trainer: subdivisions, tap accuracy, and rhythm games. - Chromatic Tuner: pitch detection. - Conducting: beat pattern practice. - Standards: jazz standard analysis and practice. - Practice Routines: build and follow structured sessions with a built-in player and HUD. - Custom Drills: build your own exercises. - Progress: streaks, stats, and session history. Theory A full content library covering foundations, advanced harmony, scale-chord relationships, style and form, and jazz standards analysis. Progress tracking and streaks built in. Interactive chord and scale examples throughout. Audio Real guitar sample playback with strum patterns, reverb, and tone controls. A precise metronome with subdivisions, polyrhythm, beat patterns, and tap tempo. Export Generate PDF chord guides, scale charts, and arpeggio sheets ready to print or share. Built by a guitarist, for guitarists. _ Terms of Use: https://jazzr.app/terms Privacy Policy: https://jazzr.app/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Chord Invaders at 15.0 against Jazzr's 26.2. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Chord Invaders sells 1 one-off in-app purchase and Jazzr sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Chord Invaders | Jazzr |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.0 โ better | 26.2 |
| Further details โ not scored | ||
| Size | 2 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Neerav Mehta | Humam Abo Alraja |
In-app purchases
Chord Invaders
- Unlock All Levels$1.99
Jazzr
- Jazzr Pro Monthly$3.991 Month
- Jazzr Pro Annual$17.991 Year
- Jazzr Pro Lifetime$24.99









