BRAILLE app

Well, this is a tough one to post, Sad story NOT short!
This is my graduation project that I started 2015 when the civil war in Yemen started, I was in mid semester and this wasn't my actual project, I switched to this one during the war when I was bored and basically had nothing to do besides worrying about staying alive.
I started designing it with no experience in ux,ui designing except the common knowledge I gathered from using an iPhone for some years (making this an IOS app) and I redesigned it over the years for about 3 times and this is my forth.
started using sketch a couple of months ago, my mac crashed and I lost all my files including the third copy I designed using sketch, I started again today and with some experience that I gained from reading.
I wasn't ever brave to even post the logo on any previous try, and now with an updated one I will continue to post my experience and work.

"This is BRAILLE app.
It's made for the blessed with sight, made to help you learn the language in the most simple ways with lessons and games."

Starting it with English language being the most common in dribbble community, greedy for your help and advice.
After succeeding I'll do the Arabic version being my native language.