A: Yes, the official app is free. Be wary of paid imposters.
A: This depends on your specific model. Most GeneralTec Wi-Fi units support Google Home and Alexa, but not native HomeKit. You can bridge it using a service like Homebridge or IFTTT.
A: Go to Settings > Devices > Select your AC > "Remove Device" > "Factory Reset." This unpairs your account.
A: Yes. The app does not require the original remote for pairing. It sends direct signals.