iReal Pro 6 and higher includes 50 accompaniment styles.
 
Additional IAPs styles can be purchased for iOS/Amazon/Android devices (including in Android emulators) and Mac from inside the app in Settings / Store (or in very old versions, More / Store) depending on your device's (or emulator's) or computer's OS version.

An IAP purchase relates to the App Store you purchased the app from, so make sure you are signed in to the account you used to purchase the app originally.
This means IAP purchases cannot be transferred or shared between the different App stores, i.e. iOS/macOS/Android/Amazon

Current IAP styles: Brazilian / Salsa / Blues

Brazilian styles - 11 styles
iReal Pro v2024.10 or higher (released 11/27/2024)
MacOS 12 or higher
iOS 16 or higher
Android OS 8 or higher

Salsa styles - 17 styles
iReal Pro v2022.2 or higher (released 3/3/2022)
MacOS 10.13 or higher
iOS 14 or higher
Android OS 6 or higher

Blues styles - 12 styles
iReal Pro v8.0 or higher (released 8/22/2017)
Mac OS X 10.10 or higher
iOS 9.3.5 or higher
Android OS 4.4 or higher