D'Tools vs THR Remote
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.
THR Remote
Wirelessly sculpt guitar tones with this app, offering deep editing for effects, compression, and noise gate. Control amplifier settings and assign footswitches for hands-free operation.
- Wireless Bluetooth tone sculpting
- Deep editing for effects
- Access compressor and noise gate
- Assign Bluetooth footswitch
- Adjust EQ for music playback
- Control line out and USB out levels
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Description The THR Remote editor lets THR-II players sculpt their guitar tones wirelessly via Bluetooth, with additional parameters for deep editing. Remote Control THR-II is built around wireless freedom. With THR Remote on your mobile device, dialing in your favorite sound is just as easy and familiar as streaming your favorite song. Deep Editing THR-II amplifiers have simple one-knob controls for the modulation, echo, and reverb effects. With THR Remote, players can access multiple parameters per effect for fine tuning, and access a compressor and noise gate. Footswitch Support Easily assign a compatible 3rd party Bluetooth footswitch for control that is both hands-free and cable-free. Advanced Settings Change the EQ for music playback, adjust the line out and USB out levels, check the battery charge level, and more.
Screenshots
Verdict
The clearest difference is rating: D'Tools at 3.6 against THR Remote's 2.2. D'Tools also leads on review sentiment (49% vs 21%). THR Remote's advantage is in-app purchases (none vs 1) and ratings volume (163 vs 30). On price, update cadence, ads 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
Both are free to download. D'Tools sells 1 one-off in-app purchase. THR Remote asks for nothing beyond the download.
D'Tools holds the better App Store score, 3.6 against 2.2. That said, the two scores are not equally well evidenced: THR Remote has 163 ratings behind it against 30, 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 21% of THR Remote's.
D'Tools ships an update every 4 months, THR Remote every 5 months. Both last shipped on October 9, 2026.
| Parameter | D'Tools | THR Remote |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (30 ratings) — better | 2.2 (163 ratings) |
| Positive reviews | 49.0% of reviews — better | 21.1% of reviews |
| Number of ratings | 30 | 163 — better |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 31 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | D'Addario & Company, Inc. | Yamaha Corporation |
Customer experience
D'Tools
THR Remote
User reviews
D'Tools
From 30 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
THR Remote
From 163 App Store ratingsWhat we love
- 🚀 Fast Bluetooth connection
- 👍 Intuitive app interface
- 🎨 Expanded amp functionality
- 💯 Great tones from the amp
Room to improve
- 🐛 Frequent Bluetooth disconnects
- 🐛 App crashes when changing presets
- 🐛 Buggy and unstable app
- 🤯 Unusable app after updates
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
THR Remote
Reported bugs
4 issues- App freezes when switching between presets
- Bluetooth connection issues after firmware updates
- App crashes on startup or during use
- Inability to control amp parameters through app
Requested features
4 requests- Ability to store and recall more presets
- Preset sharing and exchange functionality
- Ability to control amp from other apps
- Improved preset management and organization
In-app purchases
D'Tools
- Buzz Feiten Tuning System$19.99
THR Remote
No in-app purchases









