If we need to fit more icons then I can return the row that had the page number. We can then populate it with extra icons. Problem is it will waste space especially in portrait mode.

If I disable the translation button when recitation is enabled and vice versa then I'm limiting the user to one function while the application can do both at the same time.
I'm not doing that. Both should be available.

The user should also be able to start the recitation from any part. If I'm at verse 50 then the recitation starts from verse 50 until the end.

Tafsir will work exactly like translations. It is available for download from the same pages. I don't see why it should be different.

You can download multiple translations and there will be a translation icon in the toolbar to cycle between them.