Why your English app does not correct pronunciation (and what to do instead)
Why general language apps often treat pronunciation as an afterthought and how phoneme feedback changes the outcome.
Many apps are built for vocabulary, comprehension, or streaks. Pronunciation is added on top instead of becoming the core.
Direct answer
If an app does not tell you which sound failed, it is not really correcting pronunciation. It is measuring activity.
What usually breaks
Feedback arrives too late, feels generic, or relies on a sentence score that you cannot convert into action. That leaves you without a lever to improve.
In contrast, a flow based on TH, SH, and R gives you something concrete to work on.
What to look for
Choose a tool with three things: a short explanation, an audible example, and repeatable practice.
Closing note
You do not need more metrics. You need a system that tells you how to change the mouth and lets you repeat without friction.