iPhone 11 iPhone temperature

[iamsaifkhan]

Is there any app to check iphone’s temperature?

 

[now i see it]

CoconutBattery used to run natively on iOS 9 and I still have it installed on an iPhone that runs that OS. See screenshot. It displays battery temperature.
While it isn't available any longer to run natively on iOS, I can tell you from 6 years of experience that a numerical display of the battery temperature isn't needed.
The best thermometer is your hand. When the phone starts feeling too hot to hold comfortably, it's running about 103°F which is getting up there.

So just use your temperature sensors in your hand & fingers to gauge how hot the iPhone is.
If it feels uncomfortably hot to hold - it needs to cool down.

Easy - and free

Old coconutBattery shown below:

 

[iamsaifkhan]

CoconutBattery used to run natively on iOS 9 and I still have it installed on an iPhone that runs that OS. See screenshot. It displays battery temperature.
While it isn't available any longer to run natively on iOS, I can tell you from 6 years of experience that a numerical display of the battery temperature isn't needed.
The best thermometer is your hand. When the phone starts feeling too hot to hold comfortably, it's running about 103°F which is getting up there.

So just use your temperature sensors in your hand & fingers to gauge how hot the iPhone is.
If it feels uncomfortably hot to hold - it needs to cool down.

Easy - and free

Old coconutBattery shown below: View attachment 1829131

This app is not available for my iPhone 11 running iOS 14.7.1

 

[now i see it]

Correct. It was removed from the App Store when iOS 10 came out - four years ago.
I just posted a screenshot to show what it displays.
Apple thinks that users knowing battery temperature is bad so they blocked that information from app developers (even though the info does exist).