App the article is about: https://play.google.com/store/apps/details?id=com.neurelectr...
Doesn't install on recent android versions though
It looks like this was well-funded research:
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1921678&His...
The first grant was for $616,000 (over several years), and there are at least three more grants attached to this research.
Academia is sometimes a bit ridiculous. This feels like something an undergrad student could do in their spare time for a capstone or thesis project with no material cost.
YC would do a better job of this.