Need a cheap thermostat <3k that can connect to android phone

Hi, I’m looking for a thermostat that can connect to android phone. Why? Because my house window is directly facing eastwards with no obstruction for a long distance. Thus, when morning 6 am arrives & the sun rises, it gets extremely hot in my room & I wake up once between 6-7am regardless of what time I sleep due to the heat. I am planning to combine the thermostat with a universal remote like this – https://www.amazon.in/OAKTER-Oakremote-Universa... using which my AC would automatically turn On once temperature rises to a particular level. Don’t want to keep AC On all the time to save electricity. Anyone have suggestions? Ones like Nest cost around 40k https://www.amazon.in/Nest-Thermostat-Generatio...