Jadada via Amazon offers the Larkkey Smart IR Universal Control for $24.99. Coupon code "30O3AA9H" drops the price to $17.49. With free shipping for Prime members, that's $8 off and the lowest price we could find. It features voice control and IOS/Android app control. It works with Amazon Alexa and Google Assistant.

Note: It's only compatible with infrared signal remote control devices.

Update: The price has dropped to $23.99 before coupon, $16.79 after.