Plugwise Anna app disappeared

I just found out why my lights are not turning on anymore. I used the illuminence tag in the Plugwise Anna app, but this app has disappeared from the home app store, and probably the installed one on my homey does not support the Anna anymore after an upgrade. So I installed the Plugwise app, and it does find the Anna thermostat, but there’s not half of the possibilities of the Plugwise Anna app. Where is the Plugwise Anna app, and/or why does the Plugwise app not support all features of the original Plugwise Anna app?