I tried connecting xbox S controller to iphone and bluetooth paired but not working in game...

Have you tried pairing it this way:

To connect an Xbox One controller to your iPhone, start by putting the controller into pairing mode by pressing the Xbox button and holding down the sync button (top of the controller) simultaneously. After that, go into the iPhone’s
settings app and select the Bluetooth to open the Bluetooth menu. Select the controller from the list of available devices and choose to pair it with the iPhone.

This will only work so long as the iPhone’s Bluetooth technology is functional and the intended game allows for the use of a controller through a Bluetooth connection. To verify both systems support the use of the controller, check
the phone’s Bluetooth system information as well as the game’s software information. If the app or game does not make it readily apparent if it supports the use of a controller, check the developer’s official website for more information.

The Xbox One Controllers developed and certified with Apple’s MFi (Made For iPhone/iPad) certification will work with games that have implemented MFi Controller support. This is just like how Apple certifies other iPhones/iPad accessories, like Lightning
cables.

Some of these Controllers include an increase that locks your iPhone in place, allowing you to use the iPhone like a portable game console, holding the controller in your hands. Some drivers use MFi to a physical connection, so you need to connect to the
Flash port on your iPhone or iPad. Though, only the most MFi drivers connect wirelessly via Bluetooth, such as a Bluetooth headset or keyboard.

Now we see how an Xbox Controller to connect to your iPhone or iPad.

First, you’ll need to insert the controller in pairing mode

Now, turn on the Xbox wireless controller via the Xbox Button

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Then open the Settings app on your iPhone or iPad and select Bluetooth.

Click on the Controller to pair it with your device.

Note: if you have to purchase to game for your iPhone so first you need to check controller supported device.

If you’ve Jailbroken it, you can also try installing the “drivers for all” Cydia controller. It will allow the driver as MFi, as the controller function 4 Sony PlayStation activated as an MFi controller.

connect Xbox one controller to your Android and IOS Device

Many types of Controller support to your Android device

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one controller to android

If you have wireless Bluetooth controller, you can pair with the android devices to putting it in pairing modes.

Then turn on your Smartphone and go to the Bluetooth screen in setting app.

Now enable your Bluetooth, now you can see the controller on Bluetooth pair.

And now you can connect to the Xbox one controller with your Bluetooth and launch the game and start to playing

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If you have an OTG cable, using that you can be connected 360 to an Android tablet with a wired Xbox Control standard, too. You can use this cable Buy elsewhere for only a few dollars on Amazon. Also the same type of cable allows you to use other USB devices
such as USB flash drives with your phone or tablet.

I think it's really dumb that my new Bluetooth Xbox One S controller won't pair with the Bluetooth on my iPhone, I was really hoping to use the controller with these new apps for iOS because I am not good with the touch feature in most these games.

For this to work you need a controller with bluetooth, not a regular one that doesn't have that. You can tell if it has bluetooth if the controller has a 3.5mm port on the bottom near the place you would plug in a headset or keypad.

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First, put your controller into pairing mode by pressing the Xbox button to turn it on and then holding down the sync button on the top of the controller. This will activate your controller and cause it to search for new connections.

Next, go into your iPhone settings app and select “Bluetooth” in order to open the Bluetooth menu. You’ll then be able to select the controller from the list of available devices and choose to pair it with your iPhone.

Note that the game you wish to play must support an Xbox one controller.

Please connect the controller to a PC or an Xbox, it's quite possible it needs an update in the Xbox accessories app