online Bingo game ios & android app

I am looking for a skilled developer to create an online Bingo game app for both iOS and Android platforms. The app should have the following features:

– Basic features such as card selection and number calling
– Advanced features including multiplayer mode and in-app purchases

Additionally, I would like custom graphics to be created for the app. The game should also be integrated with third party services.

The ideal candidate for this project should have experience in developing mobile apps for both iOS and Android platforms. They should also have expertise in implementing multiplayer functionality and in-app purchases. Knowledge of integrating third party services is also required.