The cost of getting your app developed depends on the simplicity and complexity of your app design and its features, and if you are making it for Android or iOS. For apps developed at react native people think that it costs a lot, but it does not, react native app development cost is similar to any other app developmental cost, and it also depends on the time if you want your app in two weeks then the price might increase. Usually, the charge is anywhere from $400 to $800. Do you know the exact rates for app development on react native?
Our web design and development agency is one of the top web designing agency in Pakistan. We are also doing the work on reactive native and almost over prices are equivalent to the prices you have shared above. But, yes we also charge an extra mount to deliver work in urgency. And I think it is one of the factors to increase the cost of the services we deliver.