An appliance for opening screw and twist type containers 10 for prescription medicine bottles, water bottles, sports drinks, and jars of nearly all sizes. The appliance has a one piece thermoplastic body with an integrally molded low profile unidirectional gripping blade being positioned on the center line of the appliance. The appliance has an optimized offset from center line loading ramp and reaction plane resulting in a highly efficient opener with an asymmetrical split V type geometry. The appliance provides the optimal leverage, retention, and gripping force required to greatly ease in the removal of screw or twist type container lids ranging in size from ½″ to 4½″ in diameter. This under cabinet mounted appliance provides unprecedented ease in opening even the most difficult twist type container or jar, which is very beneficial for the aging, as well as the young, and those with arthritic conditions or other hand related problems. The appliance is highly efficient and effective in opening screw top containers, while being able to be manufactured at a high rate with low cost.