IPA symbols are incomplete for English – Phonetics Type & Test Review

I bought this app as I am a professional singer as well as a voice teacher and thought it would be a helpful tool. Having studied IPA extensively for my degree program, I was disappointed that not all vowel sounds found English are present. Also one vowel symbol is not found in English at all and is misrepresented as its close related vowel sound. Definitely needs work and refining.
Review by burberry6924 on Phonetics Type & Test.