Promising app, but tracking stopped working ?! – Vanido: Learn to sing Review

Paid the $50 for year subscription and was working great for a while until 1 day it started tracking incorrectly. As in whatever note I sing, the app is tracking it as either a half step or full step lower. Went from having perfect 3 star games to always 1 star because Id have to sing incorrectly for the app to recognize. Tried contacting the app developer both thru the app and via email a few times, but this is unacceptable for paying $50. Just cancelled subscription. YMMV. Gave 2 stars cuz it worked great for a bit but now unusable in my opinion and no response to my inquiries. ??‍♂️
Review by AdamMoskowitz on Vanido: Learn to sing.