Opposites learn and play

With few simple opposites apps for kids out there I was hopeful, but the pronunciation was really off- for example "sour" sounded like sore; "high" like "I", and some of the word choices are strange i.e. "opera" is apparently the opposite of "natural" . There are some bugs too- for example on the "sweet" page, when I tapped on a blank area of the screen it said various words like "messy", "tidy" etc. There are ads in the app, but they are at the bottom of the app and don't interfere so I wasn't worried about that. If this were updated to have native English narration and perhaps a setting where we could choose which opposites to focus on, it would be good.