The "Điều khiển điều hoà" app developed by MobiFone Viet Nam is a free smart remote control for your air conditioner. With support for over 100 air conditioner brands worldwide, this app allows you to control your air conditioner remotely. Whenever you can't find your remote, the app is there to help. You can set the temperature and control different air conditioning modes such as Auto, Cool, Heat, Fan, and Dry with this remote control app.

It's important to note that this is an infrared (IR) remote control, so your smartphone must support IR to use the app.