The ZigBee light actuator from Sonoff cannot be integrated directly into the Philips Hue app. It requires a ZigBee gateway that is compatible with the Philips Hue Bridge in order to function in a smart home system. The Philips Hue Bridge usually supports ZigBee Light Link and ZigBee 3.0 devices, but there is no specific information on whether the Sonoff ZBMINIR2 is directly compatible with the Philips Hue app.

Attention! The two answers from digitec and raffaelponti are both correct! I think something needs to be clarified.
Why is that? The switch can NOT be operated with the Hue app without a bridge. There are Hue lamps that can be operated via Bluetooth with the app without a bridge. That's why Digitec's answer is correct.
But: I can integrate the switch into the Philips Hue Bridge. Then it works perfectly with the Hue app.
I still have the older Philips Hue Bridge (https://www.digitec.ch/de/s1/product/philips-hue-bridge-zubehoer-beleuchtung-5628454). It worked straight away. Unfortunately, I can't say whether it also works with the new Pro.

I received the product and as a switch actuator (i.e. switching lights on and off) it works tiptop with Philips Hue without a gateway. The switch actuator can be added as a lamp in the Hue app and managed like a Hue lamp in the app.