[android521]

Looks great. are there great open source libraries I can use to build an app like that?

[carllippert]

also curious of this. ive seen some api's out there for pronuncaition help. maybe they are using that?

[rubengt01]

Yes, many libraries these days do pronunciation assessments. For this project, I used Azure Pronunciation Assessment (https://learn.microsoft.com/en-us/azure/ai-services/speech-s...)