Chordial is a free chord dictionary app available for iPhone. It is developed by Simon Hopkin and falls under the category of Multimedia, specifically Music & Radio.

With Chordial, users can easily look up and learn chords for various instruments including guitar, ukulele, banjo, and mandolin. The app provides access to thousands of chord diagrams, making it a comprehensive resource for musicians of all levels.

The unique and simple interface of Chordial allows users to navigate through the chord diagrams using a three-tiered wheel. This intuitive design makes it easy to find the desired chord diagram quickly.

Each chord diagram comes complete with fingerings and multiple variations, providing users with a comprehensive understanding of each chord. Additionally, users can click on the chord to hear how it should sound on their selected instrument.

Chordial supports both right and left-handed chord diagrams, accommodating a wide range of users. Currently, the app supports four instruments: guitar (EADGBE), ukulele (GCEA), banjo (GDGBD), and mandolin (GDAE). However, the developers are continuously adding more instruments and tunings through automatic downloadable chord packs.

For users who want to see a particular instrument or tuning covered in Chordial, they can easily contact the developer through the app or by emailing The developer is committed to providing a comprehensive chord library and welcomes user suggestions.

Overall, Chordial is a valuable tool for musicians looking to expand their chord knowledge and improve their playing skills. Its extensive chord library, user-friendly interface, and regular updates make it a top choice for chord reference on the iPhone.