Prevent Wi-Fi being turned off when phone becomes idle

Usually android turns off Wi-Fi when phone becomes idle. We discovered that keeping Wi-Fi on while the phone is idle reduces battery power consumption.

To simplify changing the Wi-Fi Sleep Policy setting I created an app called "Wi-Fi Battery Saver". You can use the QR code below to install it on your Android phone.

If you try out my app or change the setting manually, I would be glad if you could tell me whether it reduced battery power consumption for you.