Hello there,
I saw your post and understood your need a "PUSHNOTIFICATION TO IOS & ANDROID APP ONESIGNAL , i have 5+ year experience an android and ios mobile application and i am expert in frontend and backend app.
I have done many kind of project like :-
food delivery app
Taxi app
Restaurant app
Dating app
E-commerce app
I have 5+ years of experienced in development with the domain Android, Objective C ,Swift, PHP, MySQL, JSON, Restful API
Before moving forward to work please check previous done samples
In order to start working on your project i would like to ask few questions please.
Do you have any reference link ?
Do i need to start it from start ?
What about the hosting plan ?
I look forward to hear from you soon.
Thanks and Regards,
Shivam G.