I have the same problem. does not appear for purchase on the pkaystore. On my tablet it is no longer exporting in any format and on any platform. I have already tried to contact you and have not received any feedback.
I have the same problem and have emailed them no response I think they are not supporting android 11 such a shame what other apps are people using for accurately measuring floor plans?
I ended up using micorsoft version on an old tablet. worked a tgreat. Would rather use my flash android tablet Tab S9, but this is better than nothing.