Guitar Codex vs GuitarDex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Guitar Codex
This app offers a comprehensive suite of tools for guitarists of all levels, from beginners to experienced players. It includes a tuner, metronome, interactive chord and scale libraries, and a structured 140-lesson course covering theory, technique, and songwriting.
- Chromatic tuner with multiple presets
- Metronome with tap tempo
- Interactive circle of fifths
- Extensive chord and scale libraries
- 140 structured lessons
- Fretboard diagrams with color-coded notes
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Guitar Codex is the app you reach for every time you pick up a guitar. Find a chord, run a scale, tune up, or sit down for a proper lesson. It works for total beginners and for players twenty years in. THE TOOLS - Chord Finder: tap the frets on a blank fretboard and watch the chord names appear. Play a shape you can't name and find out what it is, or build a chord note by note and see how it's made. - Chromatic tuner with a smooth needle and presets for Standard, Drop D, Open G, DADGAD, and more. Reference pitch is adjustable from 432 to 445 Hz. - Metronome with tap tempo, time signatures, and a visual beat indicator. - An interactive circle of fifths: tap any key and see its seven chords, its key signature, and its relative key. THE LIBRARIES Every chord, scale, arpeggio, and triad renders on the same big, high-contrast fretboard diagram, with each note color-coded by its job in the shape: root, 3rd, 5th, and so on. You learn why a shape works, not just where your fingers go. - Chords: every common type and voicing, with CAGED positions up the whole neck - Scales: five boxes per scale, a full-neck view, and advice on when to use each one - Triads: three string sets, three inversions each, all on one page - Arpeggios: chord tones mapped across the neck for every quality THE COURSE 140 lessons in 12 modules take you from holding the guitar for the first time through chords, scales, theory, the CAGED system, progressions, modes, songwriting, technique, genre studies, and fretboard and ear mastery. Lessons teach with diagrams and real songs, and every one ends with a short Try It exercise you can do with the guitar in your hands. All of Module 1 is free. PAY ONCE, OWN IT FOREVER Guitar Codex has no subscription and never will. The free version includes the Chord Finder, the full tuner, the metronome, and a real taste of everything else. Two optional one-time purchases unlock the rest: Pro, the complete reference toolkit, and Complete, which adds all 140 lessons plus every lesson added in the future. Buy it once and it is yours for good.
GuitarDex
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Most guitar apps help you learn a song, GuitarDex helps you maintain your library of songs in a fun way. You might find yourself forgetting old songs or not knowing what to practice for the day, GuitarDex tracks every practice session, levels up your songs as you play them, and lets them decay if you don't. The more you've practiced a song, the slower it fades, so the songs you actually know stay yours for good. GuitarDex gives you an overview of what songs you know right now, and which need more practice. LEVEL UP YOUR REPERTOIRE - Earn XP for every practice session — it scales with difficulty, duration, and your streak - Songs progress through Seen → Learning → Refined → Fluent → Mastered - Mastered songs never decay below Refined; Refined songs never drop below level 5 - Adjust XP boost and decay rate to make progress as fast or as demanding as you want CHORD TOOLS FOR EVERY TUNING - Interactive fretboard across 12 frets, with custom tunings and capo support - Discovery mode: tap notes on the fretboard and GuitarDex tells you what chord you're forming - Search mode: pick a root and quality for up to 20 ranked chord voicings, or a scale for a full neck map broken into practice positions - Hear any chord or scale played back instantly CHORDS, TABS & PLAYBACK - Build your own chord sheets, with lyrics and chords aligned word-for-word - Import and play Guitar Pro tabs - Sync tabs to YouTube audio, adjust playback speed, loop tricky bars, and follow a built-in metronome PRACTICE TOOLS - Dedicated tuner, plus an inline tuner during practice sessions - Metronome with tap tempo and accented beats - Have a song specific metronome if your song has tabs STAY CONNECTED - Follow friends and see their libraries and practice activity - Send and receive quests, challenge a friend to master a song - Collaborate on shared Jam Decks, see what songs you both know - Full privacy controls for your activity and library
Screenshots
Verdict
The clearest difference is in-app purchases: GuitarDex at none against Guitar Codex's 3. Guitar Codex's advantage is update cadence (every 2 days vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Guitar Codex sells 3 one-off in-app purchases. GuitarDex asks for nothing beyond the download.
Guitar Codex ships an update every 2 days, GuitarDex every 4 days. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.
| Parameter | Guitar Codex | GuitarDex |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 days — better | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | CampCheck Interactive LLC | Ali Riaz |
In-app purchases
Guitar Codex
- Guitar Codex Pro$9.99
- Pro to Complete Upgrade$9.99
- Guitar Codex Complete$19.99
GuitarDex
No in-app purchases
Questions
Is Guitar Codex free?
Is GuitarDex free?
Do Guitar Codex or GuitarDex have ads?
Which is updated more often, Guitar Codex or GuitarDex?
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