This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Designed to conserve human energy in performing work or to decrease the amount of human labor needed.

adj. Describing something that makes work easier or faster.

"This hardly seems in keeping with my philosophical commitment to the laborsaving device that has defined work on The Farm thus far."

helpful   

labor-saving furniture   

labour-saving    electro-magnetic    self-acting    power-driven    money-raising