Comparison

GtrLib Chords vs iontuner

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

Head to head
About

GtrLib Chords

This app is a comprehensive guitar chord library for players of all skill levels. It offers thousands of chords with multiple voicings, fingerings, and audio demonstrations. Easily search, customize, and export chords for practice, learning, or music production.

Highlights
  • Extensive chord library
  • Multiple voicings and inversions
  • Audio demonstrations
  • Suggested fingerings
  • Quick search functionality
  • Export as PNG or MIDI
  • Left-handed mode
Features
Read full description

GtrLib Chords – The Ultimate Guitar Chord Library Unlock the full potential of your guitar playing with GtrLib Chords, the most comprehensive and easy-to-use chord reference for guitarists of all levels. Whether you're just starting out and need a reliable guide to essential chords or you're an advanced player looking to explore complex voicings and inversions, this app provides everything you need to learn, practice, and master guitar chords with confidence and precision. With an extensive library of thousands of chords, including multiple voicings, suggested finger positions, and audio demonstrations, this app provides everything you need to expand your chord vocabulary and improve your playing. Key Features: Comprehensive Chord Library • Explore a vast collection of chords in every key, including major, minor, diminished, augmented, suspended, extended, and more. • View all possible chord variations, inversions, and positions across the fretboard. • Learn chord placements from the open position to the highest frets. Learn & Play with Confidence • Suggested fingerings to improve technique and efficiency. • Audio playback to hear how every chord sounds before playing. • Fretboard visualization for better understanding of chord structures. Quick Search & Instant Access • Built-in search to find any chord instantly. • Spotlight search integration to locate chords directly from your device. Customize Your Experience • Left-handed mode for left-handed guitarists. • Key switching to transpose chords effortlessly. • Dark mode support for a visually comfortable experience. Export, Share & Save • Export chords as PNG or MIDI files for easy reference or music production. • Use exported MIDI files in DAWs like GarageBand, Logic Pro, Ableton Live, and FL Studio. • Print or share chords with students, bandmates, or collaborators. Designed for Everyone • VoiceOver accessibility for visually impaired users. • User-friendly interface for smooth navigation and ease of use. Who Is GtrLib Chords For? • Beginners – Learn fundamental chords with clear diagrams and audio playback. • Intermediate & advanced guitarists – Explore complex voicings, inversions, and extended chords. • Songwriters & composers – Quickly find the perfect chord for any song. • Guitar teachers & students – Use it as a reliable teaching and learning tool. • Producers & musicians – Integrate MIDI chord files into music production. Why Choose GtrLib Chords? Unlike generic chord books or basic online chord finders, GtrLib Chords provides: • A massive, well-organized chord library with multiple variations. • Fingering recommendations to improve accuracy. • Audio demonstrations to help you recognize chords by ear. • Offline access for anytime, anywhere learning. • High-quality exports for musicians, songwriters, and educators. Download GtrLib Chords Today! Discover a powerful, easy-to-use tool designed for guitarists of all levels. Whether you're practicing, performing, or composing, GtrLib Chords will help you unlock the full potential of your guitar playing. Get started now and take your guitar skills to the next level!

About

iontuner

Features
Read full description

The honest tuner. Free, no ads, no subscriptions, no sign-up, no data collection. iontuner does one thing well: it helps you tune your instrument quickly and accurately. Open the app, pick your instrument, play a string, watch the needle. That's it. INSTRUMENTS Built for guitar, 12-string guitar, bass, double bass, ukulele, violin, viola, cello, mandolin, banjo, piano, and chromatic mode. Tap "Show world instruments" to access oud, saz, charango, cuatro (Venezuelan and Puerto Rican), tres cubano, bouzouki (Greek and Irish), balalaika, erhu, and pipa — with proper regional tuning traditions for each. 40+ TUNINGS Standard, Drop D, DADGAD, Open G, Half Step Down, and dozens more. Five double bass tunings including the historical Viennese tuning. Multiple regional traditions for oud (Arabic, Iraqi, Turkish, Egyptian) and bouzouki (tetrachordo, trichordo, Irish). Star your favorites for quick access. FIVE CONCERT A PITCHES 440 Hz (Standard), 442 Hz (Orchestral), 432 Hz (Alternative), 430 Hz (Classical), and 415 Hz (Baroque). For period instrument musicians, modern orchestras, and everyone in between. SUB-CENT PRECISION Standard mode hits ±1 cent accuracy for everyday tuning. Pro mode goes sub-cent for piano tuning, double bass low octave, and reference work. CUSTOM TUNINGS Build your own tunings string by string. Save unlimited custom presets. Frequencies update automatically when you change Concert A. REFERENCE TONES Play a clean reference pitch for each string. Tap, tune by ear, tap to stop. DESIGNED FOR YOUR INSTRUMENT Each instrument has its own detection profile — buffer sizes, filter cutoffs, and harmonic correction tuned for what you're actually playing. Bowed strings get extra smoothing. Bass instruments get expanded low-frequency analysis. Double bass detection reaches down to B0 (30.9 Hz). WHAT YOU WON'T FIND No ads. No subscriptions. No in-app purchases. No "premium tier." No data collection. No analytics. No account creation. No paywall after seven free uses. No "unlock with rating." Nothing tracking you, ever. 10 LANGUAGES English, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Chinese (Simplified), Japanese, and Korean. iPad AND iPHONE Designed for both. iPad gets a sidebar layout that keeps everything visible. PRIVACY Audio is analyzed entirely on your device. Nothing leaves your phone. Ever. Built by a solo developer who got tired of tuner apps full of ads and paywalls. iontuner is what a tuner app should be. Open the app. Tune your instrument. Close the app. Make music.

Screenshots

GtrLib Chords4 screens
iontuner3 screens

Verdict

The call

The clearest difference is ads: iontuner at none against GtrLib Chords's shown. On price, update cadence, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GtrLib Chords ships an update fortnightly, iontuner every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
GtrLib Chords versus iontuner: the parameters behind the verdict, then further details
ParameterGtrLib Chordsiontuner
PriceFreeFree
Rating4.8 (1.4K ratings) — better—
Positive reviews77.3% of reviews—
Number of ratings1.4K — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size51 MB2 MB
Age rating4+4+
DeveloperBijoy ThangarajSeth Adam Mundall

In-app purchases

None

GtrLib Chords

No in-app purchases

None

iontuner

No in-app purchases

Questions

Is GtrLib Chords free?
GtrLib Chords is free to download, with no in-app purchases.
Is iontuner free?
iontuner is free to download, with no in-app purchases.
Do GtrLib Chords or iontuner have ads?
GtrLib Chords shows ads; iontuner does not.
Which is updated more often, GtrLib Chords or iontuner?
GtrLib Chords ships an update fortnightly, and iontuner every 3 weeks. Most recently, GtrLib Chords was updated on October 29, 2026 and iontuner on October 24, 2026.

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