ChordUp is a Chord & Notes Player, a midi controller too. The App is very easy to use. On left side, a Pad allows you to choose a Chord and its type. You to lock a Pad on a desired Chord ‘s type. 9 types are available per chord. A hold pedal with a mute feature which allows you to set the release is also available. 2 arrows allows you to change the octave. On the right side, the playing surface. 3 different “surfaces” are available. The first: 9 Pads. 3 Pads on 3 horizontal lines. Each Pad plays one note. The second surface is called Strings. Strings for guitar. So, you can strum the Strings… The Last surface: The Expression Pad. 12 horizontal lines. Here you can use the x axis while you play.
The built in library comes with 10 instruments.
In summary, 3 different surfaces in one App, it's really cool. The UI allows you to play fast. I forgot one thing,.... You can set the size of the UI it's top too. My only regrets is that you can not play your own chords. A Super App!
Review by Ed