“-” = minor
“^” or “∆” triangle = major 7
“o” circle = diminished
“ø” circle with a slash = half-diminished (min7b5)
“+” = augmented (#5)
“7#5” = augmented 7
“sus” = sus4
“2” = sus2

Example:
Cm6 = C-6
CmMaj7=C-^7
F with C in the bass = F/C

Available chords in iReal Pro:

Check out this link as well on our forum: