No Mac, No Problem: How to Write Native iOS Apps, Sans Apple
Too Long; Didn't Read
Progressive Web Apps, PWA, have done a long way and are now ready for prime time. For now, iOS PWA can’t handle push notification or background activities. There are lots of cases where you would need a native app. If you have more questions or maybe realize that developing your next mobile app might be a great idea, be aware that there are lots for lots of people to help you develop your own apps beyond what you imagined. There is another solution in which you won't have to have a Mac or use Xcode.