Umm z is zed? Zebra is zeb-bra?

Im not trying to be mean but z is said like zed in the app in my opinion I has to be changed to z is well Z. Also when zebra is said it is spoken in an odd way, for example zee-bra is said like Zeb-bra. I hope you can fix it and hope you understand what I mean I Reyes my best to explain...

Lady lupin about My First Alphabet Phonics ABC