Okay, 0.1.9 is out now and should fix the issue... I also added a way to report crashes, so IF it still gives you issues, let me know and please report the crash
Tried it out - tested on a few bits of text and it reads 1 sentence then goes non-responsive and pegs a cpu core to 100%. It doesn't crash so I don't have opportunity to report. I have to force quit the app manually.
Found the issue, published a new build, added a few features, and tested on a few devices now that I'm back home. Should be fully operational for you now!