# D'Tools

> Music

Canonical page: [https://chrome-stats.com/d/id375703586](https://chrome-stats.com/d/id375703586)

## Overview

- **ID:** `id375703586`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** D'Addario & Company, Inc.
- **Category:** Music
- **Rating:** 3.70 / 5 (36 ratings)
- **Version:** 2.1.1
- **Last updated:** 2024-02-01
- **First published:** 2010-07-04
- **Size:** 31 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/dtools/id375703586)
- **Website:** [http://www.planetwaves.com/PWiphoneapps.Page?ActiveID=4086](http://www.planetwaves.com/PWiphoneapps.Page?ActiveID=4086)
- **Privacy policy:** [http://www.daddario.com/DaddarioPrivacyPolicy.Page](http://www.daddario.com/DaddarioPrivacyPolicy.Page)

## Description

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.

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D'Tools was developed by Audiofile Engineering, a leading developer of audio software for OS X and iOS.

## Rankings

- #215,676 — Overall

## Review summary

Users praise the app for an easy tuner, accessible metronome, beginner-friendly chord diagrams, and scales, plus its free, all-in-one practice tools. However, the chord finder is often unstable and unreliable, with misrecognized or “no chord” results. Tuner pitch can be inaccurate or transposed, and updates/design changes have reduced usability, with several stability issues reported. Overall, it remains useful for learning and practice, but reliability varies across reviews.

### Pros

- Easy-to-use tuner.
- Metronome is easy to access and useful for practice.
- Chord diagrams are beginner-friendly and the chord finder helps learn and experiment with chords; scales are helpful.
- Free to use and feature-rich for tuning, practice, and playing.

### Cons

- Chord Finder crashes frequently and often fails to recognize common chords (some chords show 'no chord'); many users prefer the older version due to reliability.
- Tuner and pitch accuracy are inconsistent (notes can be flat, or chords/scales sound/transposed incorrectly, including whole‑step offsets).
- Design/update changes have degraded usability; many users feel the old Planet Waves Guitar Tools was better and that updates introduced instability.
- Audio/stability issues on some devices (crashes, occasional loss of sound after events like reboot).

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Source: [Chrome-Stats](https://chrome-stats.com/d/id375703586)