The capo, now on your phone.

Key & tempo on the phone has the capo: pick 0 to 9 under Key. The chords change to the shapes you play above the capo; the sound doesn’t change.

When a capo makes the song easier, Key & tempo says so, for example Easier with capo 2: Em, D, G, C and Am shapes. Tap Use to take it.

It works for guitar, ukulele and mandolin, and it is the same capo as the Instrument sheet’s, so setting it in one place sets it in both.