Hello,
Hope you are doing good.
We are expert app developer team, serving for last 7 years and have more than 100+ happy clients wordwide. We can integarte Admobs, notifications as well as Firebase integartion with the Android and iOS apps.
Kindly share the app link where it need to be done, along with that please share how many push notifications do you want to add, and what type of notiications we want in app.
Once you share detail I can share estimate time/efforts required for the task.
Thanks
Abhi