Comparison

Guitar Visualizer vs Fret & Key

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Guitar Visualizer

This app visualizes guitar scales, chords, and modes across the entire fretboard. It helps musicians understand music theory by showing note relationships and chord voicings. Easily identify chords, target specific scale degrees, and layer scales with chords for deeper insight.

Highlights
  • Visualize all scales and modes
  • See every chord type and voicing
  • Understand the CAGED system
  • Layer scales and chords simultaneously
  • Analyze any tapped notes as a chord
  • Target specific scale degrees for practice
  • Switch between display modes (notes, intervals)
Read full description

See the fretboard like never before. Guitar Visualizer is the intelligent fretboard tool that shows you every scale, chord, and mode in every position, in every key. No more googling chord diagrams. No more memorizing shapes one at a time. Just open the app and see it all. SUBSCRIPTION: Access to all features requires a paid subscription to Guitar Visualizer Pro, yearly or monthly ($19.99/year or $2.99/month in the US; prices vary by country and are shown in the app before you subscribe). New subscribers start with a 7-day free trial. Auto-renews unless cancelled at least 24 hours before the renewal date. Manage or cancel anytime in iPhone Settings → Apple ID → Subscriptions. Key Features: SCALES & MODES: Every scale across the entire neck. Pentatonic, Major, Minor, Dorian, Mixolydian, and more. Switch between clean view, note names, and interval numbers with one tap. CHORDS & VOICINGS: Every chord type with real, playable voicings sourced from professional references. Major, Minor, 7ths, 9ths, diminished, augmented, sus chords, and more — all with multiple positions across the neck. THE CAGED SYSTEM: See how chord shapes connect across the fretboard. The CAGED system, fully visualized — switch between C, A, G, E, and D positions instantly. TWO LAYERS: See a scale and a chord at the same time. Layer them together to understand which notes overlap — the fastest way to connect theory to playing. CHORD ANALYZER: Tap any notes on the fretboard and the analyzer identifies what chord you're playing. It even recognizes specific voicing shapes. TARGET NOTES: Highlight specific scale degrees to focus your practice. See which notes are the 3rd, the 5th, the 7th — across every position. DISPLAY MODES: Switch between clean fretboard, note names, or interval numbers. See the theory your way. Built for guitarists who want to understand what they're playing — not just memorize it. Terms of Service: https://www.notion.so/Terms-of-Service-Guitar-Visualizer-341d65a2466a80aaadf2eea2a8e2cc66 Customer Support: We really care about your experience! If you have any questions or suggestions, please reach out to hello@guitarvisualizerapp.com and we will reach out to you as soon as possible.

About

Fret & Key

This music app helps you identify chords, scales, and song keys. It features a chord finder, identifier, key finder, and an accurate tuner for various instruments. Designed for simplicity and speed, it offers essential tools without subscriptions or ads.

Highlights
  • Chord finder for piano and stringed instruments
  • Chord identifier and key analysis
  • Song key detection
  • Scales and chord families
  • Accurate instrument tuner
  • Clean, quick navigation
Features
Read full description

Find a chord, name the one you're playing, or hear a song and know its key. Scales, chord families, and an accurate tuner too, all in one beautifully simple app. No account, no subscription. It's the app you reach for mid-practice and set down thirty seconds later, having gotten exactly what you came for. Clean, quiet, and quick to navigate, built for piano and stringed instruments alike. What's inside: Chord finder for piano, guitar, and other stringed instruments Chord identifier: play a chord and it names it, and shows which keys it lives in Key finder: listens to a song, tells you its key, and sets the whole app to that key Chord families: the main chords in any key, at a glance Scales in every key, clear on both the fretboard and the keyboard An accurate tuner A clean Tools section that keeps each of these a tap away What's not inside: No subscriptions No ads No sign-up Just a beautifully simple tool that respects your time and your ears.

Screenshots

Guitar Visualizer4 screens
Fret & Key4 screens

Verdict

The call

The clearest difference is monetization model: Fret & Key at free against Guitar Visualizer's subscription. Fret & Key also leads on rating (5.0 vs 4.7) and update cadence (every 9 days vs every 3 weeks). Guitar Visualizer's advantage is ratings volume (44 vs 1). On price, review sentiment, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Guitar Visualizer sells 3 in-app purchases, starting at $0.99 per month and Fret & Key sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fret & Key holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Guitar Visualizer has 44 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Guitar Visualizer ships an update every 3 weeks, Fret & Key every 9 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Guitar Visualizer versus Fret & Key: the parameters behind the verdict, then further details
ParameterGuitar VisualizerFret & Key
PriceFreeFree
Rating4.7 (44 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings44 — better1
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size36 MB124 MB
Age rating4+4+
DeveloperJuan NegronCurious Labs

Customer experience

Guitar Visualizer

All ratings44 ratings
Positive95.5%
Neutral0.0%
Negative4.5%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fret & Key

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Guitar Visualizer

Subscriptions3
  • Guitar Visualizer Pro7 Days trial$0.991 Month
  • Guitar Visualizer Pro7 Days trial$2.991 Month
  • Guitar Visualizer Pro7 Days trial$19.991 Year
1 purchases

Fret & Key

One-time1
  • Full Unlock$7.99

Questions

Is Guitar Visualizer free?
Guitar Visualizer is free to download, with in-app purchases available.
Is Fret & Key free?
Fret & Key is free to download, with in-app purchases available.
Which has better reviews, Guitar Visualizer or Fret & Key?
Fret & Key is rated higher. Guitar Visualizer averages 4.7 out of 5 from 44 ratings, while Fret & Key averages 5.0 from 1 ratings.
Do Guitar Visualizer or Fret & Key have ads?
Neither Guitar Visualizer nor Fret & Key shows ads.
Which is updated more often, Guitar Visualizer or Fret & Key?
Guitar Visualizer ships an update every 3 weeks, and Fret & Key every 9 days. Most recently, Guitar Visualizer was updated on November 9, 2026 and Fret & Key on November 6, 2026.

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