How to make friends IOS and Android gadgets with Arduino UNO?

Question

Android

Hello.
The task is as follows - there is an Arduino UNO-based device controlled by an IR sensor and, of course, a remote control. There is a desire to control the device using a mobile or tablet, that is, by connecting a receiver to a device with Bluetooth or Wi-Fi, send commands to the device for execution. For Android, writing a program is not a big problem, since there was not much experience, but with iOS it is difficult.
The following questions arose - is it possible to make friends with an iOS device with Bluetooth receivers like HC-05 and Arduino? If they can be friends, then is it possible to download an application on an iOS device by bypassing the App Store, for example, by downloading it through iTunes?

Answer 1

I can’t say anything about iOS, on Android, communication with the HC-05 is carried out without problems.

Answer 2

With iOS, you need a Bluetooth module with Ble support, and the application can be installed bypassing the store only if there is a jailbreak)

Answer 3

Jail is not needed - IPA file from poppy and impactor)