Could not install survX on my Android phone

Hey,
for testing purposes i want to install survx-software. But on my Pixel 7 Pro (Android 13) i can’t install the apk-file downloaded from here. It says only “You could not install this App on your device” Is there any newer software version which is compatible or what is the reason? “Unknown origin” App-option is already activated. Screenshot_20230205-082538