I progressed quite a bit on the design of my app so here is my first draft.

I thought that the design is not good and not friendly so I changed the colours.

With the new colours it seems more friendly and is more pleasantly to use.

And these are my final drafts :

the index page

the menu that can be accessed by a simple tap o the menu button

the diary page

the last 2 pages are still in the making.