Yes, many casino apps available on the App Store allow you to play with real money. However, due to Apple's policy restrictions, the payment transactions may not be processed within the apps themselves.
Apple recommends users complete their transactions on the respective casino's website. For instance, popular platforms like Pokerstars, Paddy Power, and Betfair are played with real money and can be downloaded from the App Store. Once the app is installed, players would need to visit the casino's website to deposit or withdraw funds.