Hi,
I read your description and try best to understanding 3 plan of the application.
I also work in IONIC Application Development which supports both Android and iOS platform.
I have expertise in Layout Designing, XML, Java, Web Services, SQLite with API integrations for Location,
Payment Gateway integration like Paypal, Paytm, PayU etc.
So I can provide you effective and responsive application as per your requirements.
Looking forward to your response.
Thanks and Regards,
Harshad Patel