Zero Knowledge ecosystem is bigger and sometimes  it might be difficult to differentiate between them, and the functions they perform.
Projects like @SuccinctLabs and @boundless_xyz are top Zero Knowledge Protocol but differ. 

Boundless establishes a decentralized compute market, treating ZK proofs as a commoditized resource driven by incentives. On the other hand, 
Succinct reduces complexity for developers, serving as foundational infrastructure for verifiable applications (e.g., bridges and rollups). 

 While both improve ZK adoption, Succinct streamlines the creation process, whereas Boundless enhances production and distribution efficiency. With this, you should now know how they play.