Why is there no message about idle fish on Apple 5s?

Hello, according to your question, I'd like to make some suggestions, which I hope will be useful to you.

1, there is a big switch on the left side of the mobile phone to control the sound, which can be turned on and off. Make sure it is turned on to make a sound.

2. Find the software of idle fish in the settings and see if the prompt tone is turned on. I don't have any idle fish. Let me show you another software.

You must open the notice here to get the prompt.

If you are not prompted, it is recommended to go to an Apple store and ask a professional to check whether there is anything wrong with your mobile phone.