Control you Samsung Smart TV from your phone using your android smartphone. App can control TV using WiFi & infrared blaster. iSamSmart app is easy to use and app provides all standard Samsung Smart tv remote functions.

Make sure phone & TV are in same local WiFi network.
App works with 2016+ Samsung TV models and make sure to update TV firmware if you encounter connectivity issue.

When app connects for the first time please provide authorization by using physical remote of TV. This authorization is one time however if you decline or forgot to authorize please navigation TV menu as below and Allow app remote.
Menu -> General -> External Device Manager -> Device Connection Manager

App lists all streaming channels like Netflix Youtube Amazon Prime..anything on your TV listed on your phone and you can quickly launch streaming app from the tip of your phone.

8 Favorite Streaming channels can be set and can be quickly accessed in Remote Screen.
All TV remote function buttons like Source Menu Sleep Guide Tools
Joystick Arrows Volume Up Volume Down Mute Channel Up Channel Down Return Exit Player functions like Play Pause Stop Forward Backward buttons are available.
Number keypad to quickly access new channel.

App will detect your phone is equipped with Infrared port. If your phone is not equipped with infrared please try using WiFi.