Love the idea but no sound – Zee's Alif Ba - Discover the alphabet with Zee Review

I have a 3 years old son who when I download the app, he played for a bit then stripped because there is absolutely no sound in the app. I have tried to see the settings in the app/my phone but the sound shows that it is open. I bought it for the idea they have and the activities. Also, my phone is updated to the last update and if the app owners can fix this, I would be very happy with it.
Review by اسمساسس on Zee's Alif Ba - Discover the alphabet with Zee.