FretTools vs Guitar Visualizer

FretTools Gear Tracker. String Diagnostics. Tuner. Chord Library. GEAR TRACKER Your gear documented and accessible when it matters. • Track guitars, basses, amps, pedals, and more • Store serial numbers, specs, purchase details, values, and notes • Attach photos to each item • Record string changes with brand, model, gauge, and date • Log maintenance, repairs, setups, and modifications • Export a formatted PDF with gear details for insurance or resale STRING DIAGNOSTICS Know what's happening inside your strings, not just what note they're on. FretTools analyzes six harmonics in real time using phase-shift detection — the same moment you'd normally just tune to also tells you whether a string is going dead, sitting out of intonation, or due for a change. • String Health evaluates tuning stability and harmonic agreement • Intonation analysis helps reveal possible setup inconsistencies • Harmonic Lanes for detailed pitch analysis • Save diagnostic history to a selected instrument • Compare readings across the life of the current string set • Start a new session when you log a string change String Diagnostics is a Pro feature. It runs on the same pitch engine as the free tuner below, but it's a separate capability — most tuners tell you a note. None of them tell you your string is dying. String Diagnostics provide guidance and do not replace a full instrument inspection or professional setup. TUNER — FREE. ALWAYS. Responsive, accurate tuning for guitar, bass, ukulele, banjo, mandolin, violin, and more. • Real-time note and cents display • Strobe-inspired ring for clear sharp/flat feedback • Instrument-specific tuning presets CHORD LIBRARY Find chords quickly across multiple guitar tunings, ukulele, and mandolin. • 2,500+ chords with 3,200+ voicings • Clean diagrams with finger positions • Open chords, barre chords, inversions, and alternate voicings • Slash chords with alternate bass notes • Browse by root, chord type, category, or key • Diatonic chords grouped by harmonic function • Play full chord strums • Tap individual notes to hear them in isolation WHY FRETTOOLS • Four practical tools in one app • Works offline • No account required to get started • Clean, focused interface • Built for working musicians and hobbyists alike FREE → PRO The Tuner is unlimited and always free. Upgrade to Pro for: String Diagnostics • String Health and intonation analysis • Harmonic Lanes for detailed pitch analysis • Diagnostic history, saved and compared per instrument Gear • Unlimited gear items • Up to 8 photos per item • Maintenance and string-change tracking • PDF export Chords • Additional voicings and inversions • Slash chords • Full key-based browsing Additional • Removes ads THE BOTTOM LINE Track your gear. Know when your strings need attention. Find the chords you need. Privacy Policy: https://frettools.com/privacy Terms & EULA: https://frettools.com/terms

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.