Bird Vocs Learn Bird Sounds

I couldn’t just listen to one bird’s calls and songs. You have to compare two birds. But the instructions are so unclear on how to actually search for both birds. The app kept saying that I needed to pick another bird to compared to, but it didn’t tell me how to do that. Also, it should have suggested similar birds to the first bird so that I could learn to differentiate one song from a similar call from a different bird. After struggling with it for 10 minutes, I just deleted the app. There is a need for an app like this, but they were absolutely no instructions. There was no way to filter from different birds regionals. I’m not going to confuse a bird in the Midwest with a bird from Africa.