Messenger app will not open, have deleted app - reinstalled - shut down , will open on my android phone but not on iPad (have deleted threads of messages via android phone ) still not working, any suggestions please ?

Hi Kimme1,

We'd like to help share some guidance to assist you with this issue you have with the Messenger application. You came from a great article that directly identifies the steps you take to help with issues like this. With this issue remaining after that, and if isolated to just this app, you will want to contact the app developer. You can follow the steps in How to contact an app developer - Apple Support. This will help with contacting the app developer.

Thanks for using Apple Support Communities.