All the apps support headphone jack IR blaster get app store rating at about 3, all of them get a lot of negative reviews, why IR Blaster App Sucks?

Poor IR database coverage is one of the main reason
Theoretically headphone jack IR blaster can only send out IR signal …

IR Blaster (or infrared blaster) allows users to use their smartphones as a universal remote. A smartphone with an IR blaster allows you to control any device that can be controlled using a remote.
Some of the common uses of a smartphone with an IR blaster is to control televisions …

This IR Blaster works with iOS App EzRemote

Theory

The process is based on the fact that the IR key codes are series of square waves at 38kHz of main frequency. The duration in time of the square waves ON and OFF defines the codification of a specific key. By …

This IR Bridge works with iOS App FzRemote
Project Home Page https://github.com/FounderSG/ZRC

What you need:
1. Ti CC2640R2 LaunchPad
2. IR led (0$ if you have a couple of old remote controls, 1$ if you need to buy them)

3. wires and iron

Connection:
IR led …