How to check whether an application is installed in ios in H5

for example, one of the requirements now is that my H5 page provides a button to download iOSAPP, which users click to download will automatically install the installation package now this function has been implemented, but the installation should be untrusted

so I need to detect that he provides a button to jump to the system trust setting after installing app

the problem now is how to check whether he has installed the app and provide a jump

I found some information on the Internet, probably the principle I understand, that is, app provides a local protocol, I regularly scan this agreement, if this agreement exists, provide link jump. I don"t know if I understand

what I see on the Internet is that the app opens automatically when it exists. In fact, my requirements do not need to open the app, so I do not know how to implement this code.

I hope a great god can provide such a code example

IOS-developing ios javascript app html5

Sep.16,2021

for H5, it means redirecting you to make a protocol to do the wake-up operation
to determine whether to install
https://blog.csdn.net/u010960.. Here's an example
the second one I've used is feasible

https://codeshelper.

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