Hello Mate,
I checked that you want to develop an application which can work on both operating system that can be made through hybrid applications like flutter, but as you want to develop that in Laravel, MySQL, PHP that I can do that it Easily .
Let, me tell you that I have an experience in this sector for about 10+years and have immense knowledge in this field developing websites , making logo's , frontend and backend as well as knowledge about the database like MySQL, MongoDB, SQLite .
And have knowledge of PHP, java , python , C#, ruby on rails , react native, ReactJS, java script , Django, CakePHP, Laravel, CodeIgniter, WordPress, Shopify, Joomla, Magento, Open cart.
I know how to make your application and what to add in to make it more attractive ,Let's discuss it on chat ,
I'll be waiting for your response .
Thanks .