No, they're not exactly the same. DC Comics is the original source of the characters and stories, while the DC Universe is a broader platform that includes various media adaptations and related content.
Definitely not. The DC Universe app offers a wide range of video content related to DC characters and storylines. In contrast, the DC Comics app is dedicated to providing access to various comic books. They have different features and purposes.
He would probably be seen as a very powerful and unique being. His chakra abilities could be mistaken for some kind of meta - human power. Maybe he'd team up with the Justice League to fight against powerful threats like Darkseid. His skills in combat and his ability to use shadow clones would give the League an edge in battles.
DC Universe Rebirth graphic novels have brought back the sense of hope and legacy. They reintroduced classic elements that were lost in previous reboots. For example, the return of beloved character relationships.
It's hard to say. Goku has his Super Saiyan forms which give him incredible strength and speed. But Flash is known for his super - speed. If it's a short - distance race, Flash might have the edge. However, in a full - on battle where strength also matters, Goku could use his energy blasts and fighting skills to overpower Flash.