D'Tools vs Airyware Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D'Tools
This app is a comprehensive toolkit for guitarists, offering features like a chord library, scale explorer, digital tuner, and metronome. It provides professional-grade utilities to help players of all levels improve their technique and explore musical possibilities.
- Chord library with 7,000+ chords
- Scale and arpeggio explorer
- Professional-grade digital tuner
- Hyper-accurate digital metronome
- Chord finder by fret selection
- Lefty mode for chords
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Newly updated to support the latest iPhones and iOS 12, D'Tools (formerly Guitar Tools) is the ultimate hand-held utility kit for guitar players of any style or skill level, brought to you by D'Addario & Company, Inc., the world's largest designer, manufacturer and distributor of musical instrument accessories. Enjoy the full functionality of the Chordmaster and Scale Wizard apps, the core features of ProTune and ProTempo. Developed exclusively for iOS by the minds at Audiofile Engineering, D'Tools packs a wealth of easy-to-use, professional-grade guitar utilities into one elegant application for your iPhone or iPod touch. FEATURES: CHORDS Explore a library of more than 7,000 guitar chords by simply tapping and strumming the touch screen. View chords in every position up and down the guitar neck and hear each one played back in pristine audio. There's even a "lefty" mode for the oft-neglected southpaw. CHORD FINDER You know how to play it, but what do you call it? Select frets and finger positions to discover the proper name for your chord. SCALES Improve your technique by choosing from thousands of scales, modes and arpeggios to practice. Try multiple positions and alternate tunings to boost your versatility. Use "big stretches" for unique, challenging fingerings. TUNER Keep your instrument in tune with a professional-grade digital tuner, powered by Audiofile Engineering's precise AETune™ pitch detection technology. Choose between strobe or needle interface and access dozens of presets. METRONOME Keep in time with a hyper-accurate and visually stunning digital metronome. Set tempos numerically or by tapping the touch screen. Choose from multiple sounds and time signatures. --- D'Tools was developed by Audiofile Engineering, a leading developer of audio software for OS X and iOS.
Airyware Tuner
This advanced chromatic tuner utilizes a powerful DSP engine for precise tuning of a wide range of instruments. It offers multiple display modes, extensive customization options for tunings and temperaments, and a tone generator. It supports internal and external microphones and is suitable for both amateur and professional musicians.
- 10-octave tuning range
- True strobe tuning mode
- Fundamental pitch heatmap
- Real-time noise reduction
- Scale transposition
- Tone generator
- Customizable tunings and temperaments
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Powered by the 64-bit NeatTimbre™ DSP engine, Airyware Tuner helps you tune string, brass, woodwind, and some percussion. It is fast and accurate – try it for yourself! ―― Airyware Tuner feature list: ―― • 10‑octave tuning range: 10–11000 Hz • up to 0.1‑cent accuracy • true strobe tuning mode • linear needle meter • fundamental pitch heatmap • real-time noise reduction • A4 calibration: 300–600 Hz • calibration to live sound • waveform inspector (oscilloscope) • high‑contrast display • sharp/flat/3b2# notations • scale transposition: ±12 semitones • tone generator, pitch pipe: C2–B4 • internal/external microphone support • 400+ instruments, 900+ alt. tunings • customizable temperaments • customizable sweeteners • customizable stretched tunings • custom Railsback curve definition • string inharmonicity awareness • tempered note audition: C0–B7 • favorites for tunings • feature request gateway Please note, this app is not free. You can try every feature for free during the trial period. After the trial ends, the app will remind you of this every thirty seconds. There will be no other restrictions, and all features will remain available. If you don't plan to buy a license and you have nerves of steel, you can continue using this tuner completely free. Or you can make a one-time purchase of a lifetime license and enjoy this excellent tool on all your compatible Apple devices anytime, anywhere. ―――――― Most user reviews suggest that Airyware Tuner is the best guitar tuner. However, this app is not limited to guitars. It can assist in tuning more than 400 orchestral and other instruments, including the piano, violin, flute, bagpipe, trumpet, clarinet, saxophone, cello, mandolin, veena, church organ, harmonica, recorder, ukulele, bass, banjo, and more. It performs equally well on stage, at home, or on the street. Bass guitarists and contrabassists particularly love it, and piano tuners and luthiers use it professionally. With its instantaneous response, scientific precision, waveform inspector, denoiser, and true strobe view, this tuner is the choice of musicians who demand the very best sound.
Screenshots
Verdict
The clearest difference is rating: Airyware Tuner at 4.5 against D'Tools's 3.7. Airyware Tuner also leads on review sentiment (89% vs 49%) and update cadence (monthly vs every 4 months). On price, ads, in-app purchases and monetization model 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. D'Tools sells 1 one-off in-app purchase and Airyware Tuner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Airyware Tuner holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Airyware Tuner has 643 ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 49% of D'Tools's written reviews are positive against 89% of Airyware Tuner's.
D'Tools ships an update every 4 months, Airyware Tuner monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | D'Tools | Airyware Tuner |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (36 ratings) | 4.5 (643 ratings) — better |
| Positive reviews | 49.0% of reviews | 89.2% of reviews — better |
| Number of ratings | 36 | 643 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 12.2 |
| Further details — not scored | ||
| Size | 31 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | D'Addario & Company, Inc. | Sergey Konvisarov |
Customer experience
D'Tools
Airyware Tuner
User reviews
D'Tools
From 36 App Store ratingsWhat we love
- 🎸 Comprehensive all-in-one guitar tool (tuner, metronome, chord finder, scales)
- 👍 User-friendly and intuitive interface
- 💰 Free or affordable pricing
- 🎯 Accurate tuner (when working properly)
- 📚 Extensive chord and scale library
Room to improve
- 🐛 Frequent app crashes, especially with chord finder
- 🔊 Audio/sound issues after app closure or phone reboot
- 📱 Microphone access problems on newer iOS versions
- 🎵 Tuner accuracy issues (reads sharp or flat)
- ⚠️ Poor app support and unresponsive developers
Airyware Tuner
From 643 App Store ratingsWhat we love
- 🚀 Accurate and precise tuning
- 👍 Versatile with many instrument options
- 🎨 Useful sweetening and intonation features
- 🔍 Detailed visual feedback and strobe display
- 💻 Works well on various devices (iPhone, iPad, etc.)
Room to improve
- 🐛 Navigation issues between screens/settings
- 🕰️ Automatic review prompts can be intrusive
- 🔍 Difficulty picking up lower notes in some cases
Bugs and requests
D'Tools
Reported bugs
14 issues- Chord finder crashes app repeatedly
- Tuner stops working after iOS updates
- Microphone access not granted or requested properly
- Audio/sound stops working after app closure
- Metronome has no sound intermittently
Show 9 moreShow fewer
- App crashes when accessing 'Find Stores' or 'Find Teachers' features
- Chord finder displays 'no chord' for valid chords
- Tuner reads notes sharp or flat (off by semitones)
- App crashes after receiving phone calls
- Chord finder cannot recognize bar chords
- Cannot select open strings in chord finder
- App requires internet connection to function
- Incompatibility with iOS 7, 8, 11, and 12.5.7
- Tuner frequency range too limited (doesn't go below A1)
Requested features
13 requests- Mute button for metronome
- Bluetooth audio output for metronome
- Dark mode/dark background for tuner visibility
- Ability to change tuning in chord dictionary
- Auto-play feature for continuous chord/scale playback
Show 8 moreShow fewer
- Poly-rhythm metronome
- 3 notes per string scale display option
- Bass-specific scale options
- Ability to play pitch reference tone (440Hz, etc.)
- Support for alternate tunings
- Background metronome playback during multitasking
- Restore previous purchases button
- Microphone access request on app launch
Airyware Tuner
Reported bugs
2 issues- App gets stuck in settings menu, unable to return to tuner
- Occasional crashes or freezes on certain devices
Requested features
3 requests- Add custom instrument/tuning presets
- Improve navigation and UI flow
- Provide more detailed tuning metrics and analysis
In-app purchases
D'Tools
- Buzz Feiten Tuning System$19.99
Airyware Tuner
- Full Version License$4.99








