Where can I download the Plan4Flex app for my mobile phone? Didier 17 September 2019 18:16 Updated Follow You can easily dowload the app at the Google Play store as well as at the App store. Please click here below for the right app; Related articles Which rules of conduct apply at Charlie works? How does the Plan4Flex app operate? How can I download the ABU Cao app on my mobile phone? I am looking for work. I want to apply for a job ABU Cao (Cao for temporary workers) Comments 0 comments Please sign in to leave a comment.