ChordUp - Play Chords 4+

Your pocket chord player

Dmitrii Klochkov

    • 4.4 • 36 Ratings
    • $5.99



ChordUp is a musical instrument and MIDI controller that allows you to play almost any common chord instantly. No need to configure presets for each song. Just grab ChordUp and start playing.

Unique chord selector allows you to play any available chord instantly. You don't need to make any pre-configurations or presets. Just tap on the key button and slide your finger to the required chord type. With a little practice you will be able to select any chord in a fraction of a second.

Three playing surfaces allows you to easily play any rhythm pattern: full chords, bass and chord, strumming or arpeggios.

You can use ChordUp to control your favourite soft or hard synthesizer through Core MIDI connection or though Audiobus 3 MIDI ports.

ChordUp can send MIDI notes to another iOS device through a Bluetooth MIDI connection. If you want to control an App running on your Mac you can connect through Bluetooth, Wi-Fi or USB.

• 108 available chords (9 chord types for each of the 12 notes).
• 10 embedded instruments: Acoustic Piano, Electric Piano, Guitar, Organ, Accordion, Vibraphone, Strings, 3 synth sounds.
• 12 pads surface (for piano like parts)
• 6 strings surface (for guitar strumming, power chords and arpeggios)
• Expression pad surface (allows to play full chords and control an expression parameter at the same time)
• Smart sustain. With the sustain enabled, when you switch chords, only the notes of the current chord that don't belong to the next chord are muted.
• Octave transposition.
• Chord locking. You can lock one chord type for a chord button.
• Buttons size adjustment on iPad.
• CoreMIDI support.
• Audiobus support (Audio sender port, MIDI sender port)

What’s New

Version 1.4.1

- Update app icon
- Fix "rate app" dialog

Ratings and Reviews

4.4 out of 5
36 Ratings

36 Ratings

Chester-Tanner ,

ChordUp -Play Chords App

Friend, What an incredible app! i'm having a blast with it. I'm always looking for some new interesting instrument thats simple, but fun.. its is pure genius in its approach, ease of use. Absolutely brilliant! I love the fact you have three different "types" of instruments included, Pad, String, and whatever that other one was, all cool. What really makes this app shine is the MIDI out, which I effortlessly send into synth apps, etc (Im relatively new to MIDI, so u made it real easy for the user to make a midi connection). Im having the most fun with sending the midi out to Korg Module and also to the Pure Synthesizer app, select a dreamy layered synth, set your app to sustain the notes and WOW! I thought I was in heaven hearing the angels playing an arpeggiated synth guitar. I was going to wait till Black Friday to see if it went on sale, I got apps mixed up and ended up paying full price. I'm not the least bit dissapointed, Son, you deserve every penny for such a well developed, well conceived app. I donr mind paying top dollar for stuff that works. Blessings! Rob "The Watchman"

Bernie Lomax ,

Amazing! One request…

This app is great fun! I’m loving the ability to strum my various synth apps with midi out! It’s so fun to use if you treat it like a live instrument.

My one request for the dev would be to add Haptic Touch for the newer iPhones. The app C. ARP does this very well, and kind of plays the same as the “Expression Performance Mode” in ChordUp but unfortunately that app, although great in its own right, doesn’t have midi out.

It seems kind of trivial, but there’s something about having that extra dimension that really makes you feel like you’re playing an instrument. It would make this already incredible app that much more amazing to me!

mhoman ,

Basic function of saving presets missing by design

I agree that it is very easy to change chord qualities but if you play different songs chances are that it will be different for the next. Doesn’t make musical sense to have to change chord qualities every time you play a new song. No Auv3 or you would be able to work around in something like AUM. There is IAA but that has loading issues. It will not save different song settings so not a work around but it does give more midi routings. You are stuck with the note order and even though you song doesn’t have some of the chords. Chord boxes are too small to play without looking at the screen. I want a refund but maybe the developer will update so I look at it as funding development. Hope this app is not abandoned like so many other similar apps. Looks like the reviews are phones as even when filtered by most critical they are 5 stars. I doubt my review will get published.

App Privacy

The developer, Dmitrii Klochkov, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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