It’s a bit confusing to understand which setting works for different devices because there are two separate buttons that change the connection mode on the controller. And especially since the Shooting Plus V3 is not an app by Amkette, it’s a free app that works across a wide range of controllers. So you will have to read through the manual to understand which connection mode is for controller supported connection and which mode is for the key binding method for games that don’t support controllers. Thankfully, Amkette has a dedicated page on their website with YouTube video tutorials for changing and modifying the controls.
iOS and iPadOS is fairly simple, the controller detects as Dual Shock 4 controller on the Bluetooth settings page. Shooting Plus V3 app is available on the Apple App Store but the controller doesn’t work with the app on the Apple devices so you can’t rebind touch controls for Pokemon Unite, BGMI and other such games.
The controller also works with PC, TV, and PS4, making it a versatile option for multi-platform gamers. However, keep in mind that not all games will be compatible, and you might need to do some tinkering to get things working properly.