About & Pics


Tired of all those chordfinder apps that just give you the standard results every app gives you? Fretter is the new kid on the block. And it's great. Ugly, but great!

We didn't sit behind our computers typing in all those chord diagrams, no we spent our time better. We came up with a way to give you lots of great correct diagrams, without needing us to do boring stuff: Fretter teaches your iPhone basic musictheory and with that knowledge it has the power to give you every possible diagram there is. Want to see how to play Cmaj7/F# on a Guitar with a Dropped D tuning? Fretter knows how to search for it! (We didn't try, but if it's possible to play, it will definitely show up. Yes, we're lazy. :) )

Still, Fretter is great. And it does awesome stuff like reverse chord lookup (for the creative geniuses among you), and you can also strum the diagrams to hear how they sound. Easy if you want to find the perfect sounding Dmaj9 or whatever strange chord you need!

So, what are you waiting for? Fretter!

For a more formal description, please continue reading.

Looking for ways to play all those chords on your guitar, banjo, ukulele or mandolin? Interested in a reverse lookup function? Fretter: the ultimate chordfinder!

Fretter doesn't rely on a database with diagrams, instead it calculates all the possible diagrams for a given chord/instrument/tuning combination. It's algorithm is optimized to only present to you the chords that you can actually play as a human.

Because Fretter is build this way, you can select any tuning and still have all the possible chords presented to you.

You can easily select a basic or advanced chord, optionally with added bassnote, and go to the diagrams. Each diagram has extra information about the chordnotes and the intervals used.

A very nice feature is the audio playback. You can hear how the chord variations sound so you can easily select which variant you like the most.

Also included is a reverse lookup option. Nice if you are a bit adventurous and you are coming up with your own chords on your instrument, but don't know how they are called. Fretter can help you here by providing you with the correct naming.

If you are looking for a chord reference app: this is what you need.

"Where this app stands out though, is not in its vast reference of chords; it is in it’s reverse look up option."
4/5 stars on AppAdvice.com

Feature list:
* Support for Guitar, 4,5-string Banjo, Ukulele, Mandolin, Lute, Bouzouki, 4-string Bass, Pipa
* 50+ chordtypes
* Tunings: 75+ predefined and custom.
* Added bassnote (C/D)
* Audio Playback
* Reverse lookup
* Chord Intervals
* Note Names

Please contact us by email if you experience a bug!

 $0.99 in iOS App Store


Fretter - Chordfinder screenshot 1Fretter - Chordfinder screenshot 2Fretter - Chordfinder screenshot 3Fretter - Chordfinder screenshot 4Fretter - Chordfinder screenshot 5

Version History

Launched Apr 11, 2011 (about 8 years ago).

Releasing new versions every 9 months, on average.

Apr 12
Version 1.5.2

Added Lute, Bouzouki, 4-string Bass, Pipa
Add diagrams option for Reverse Chordfinder
Updated Tunings and ChordTypes
Fixed a few crashes
Improved Crash Reporting to include selected chord/instrument so errors can be reproduced.
Minor improvements to interface

Apr 06
Version 1.5

Updated app to support the more recent devices.
Fix audio playback issues.
Minor improvements and fixes.

Nov 20
Version 1.4

- New reverse chordfinder, that allows you to select the notes on the fretboard!
- Instrument changes now reset the chordfinders.

Nov 06
Version 1.3.3

Fixed crash when selecting custom tuning.

Oct 04
Version 1.3.2

Support for iOS6 (bugfix that made instrument selection crash)
Support for iPhone 5 larger screen.

Jan 26
Version 1.3

Added custom tunings.

Jun 17
Version 1.2

Added fix for 3G models crash bug.

Apr 29
Version 1.1

Added sound playback for zoomed in diagrams.
Swipe horizontally over the diagram to hear how the chord sounds as shown in the diagram. Easily discern between variations to find the one you like!

Apr 12
Version 1.0

Previous 3 versions

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