There have been several educational studies about BeeLine, and they've shown various benefits for reading fluency (which is measured as correct WPM) and reading comprehension. These were done with kids as young as six, but mostly older.

There was also a study done in an optometric office with patients, who saw improvements in visual tracking, not surprisingly.

Various of our partners have also tracked to see how user behavior differs between people reading with BeeLine and people reading traditional black text. These have shown increases in article completion rates, average scroll depth, pages per session, and app usage.

All of these studies were done independently and were not compensated. I don't know about bionic — they're pretty new, so I imagine they don't have a ton of research at this time.