Is there an app to improve my English accent?

Yes, several apps described above include pronunciation feedback, and the ELSA Speak listing describes the most specific pronunciation features of the three. The honest limit is that no listing states how accurately it detects a given accent or whether a flagged word would actually confuse a listener. Use an app to find a target, then verify the word against dictionary audio, because that pair is public and checkable.

Pick one word you can already check in a dictionary entry with UK and US audio, and use it as your test case before you judge any app.

American Accent Training App →