After in app purchase app crashes. – Audio Signal Generator Review

Downloaded and used free version for a few minutes with no problems in conjunction with Room EQ Wizard on my laptop. I loaded the frequency sweep add on and app crashes 100 of the time. Really disappointed since it's a paid app. Otherwise, it appeared to be the tool I need to calibrate my home theater gear. Please fix so I can get back to business.
Review by meese1234567890 on Audio Signal Generator.