An improved gutter cover system which is relatively convenient to install, with an innovative gutter bracket and gutter cover that can be installed more quickly and effectively.The gutter bracket has a bracket member, a tab member and a lip member. The bracket presents a longitudinal axis aligning the wall end and the swivel end. The bracket includes a shaft with a wall end and a swivel end. The wall end has a flange opposite from the swivel end as well as a flat portion along the longitudinal axis. The tab member extends upwardly from the bracket member, to form a slot adapted for insertion of the edge of the gutter cover. The lip member is affixed to the swivel edge, preferably by a screw. The lip member is configured to be matingly received within the lip of the gutter.The improved gutter cover includes a planar panel for positioning on the roof, an arcuate nose at the lowest portion of the panel disposed close to the gutter, a planar lower member below the nose and a foot suitable for mating edge insertion into the slot.The system improvements include a modified nose with an arcuate profile free of formed edges to avoid diversion of the rainwater path. Another improvement is the foot, which provides a mechanically secure placement of the cover between the roof and the bracket. In particularly preferred embodiments, the bracket presents a raised elevation for easier installment of the cover.In addition, an improved gutter hanger and the gutter bracket are both easier to install, spanning the gutter from front to back, because of a swivel function preferably disposed relatively close to the front of the gutter, for easier installation, yet providing mechanical support for the gutter when the swivel portion is locked into rigid alignment.Both the bracket and hanger are installed in the same fashion. Each is installed by first placing the lip member in mating engagement within the lip of the gutter. Then the flange is fixed to the wall of the building by a screw, bolt or the like. Then the swivel end is securely aligned with the wall end for appropriate mechanical tension between the lip and the wall. At that point the bracket (or hanger) is “locked in” preferably by fixing the screw to both the swivel end and the wall end at their junction.