I see several forums asking why Aqaqra TVOC sensors does not update in Homey Pro. I have several of this sensors and ‘all’ of them can take hours and days before updateing. I have runned the sensors on other smart hubs and here they are updating and showing the correct.
App support and/or forum links are present at the bottom of app store pages (if provided for).
There you’ll find the link to the app topic on the forum, where Dijker pointed to.