Shares in AIM-listed Fitbug soared on news its 'Slim + Trim Kiqplan' digital weight-loss programme had been chosen for the launch of a new marketplace launched by Jawbone, the rising star of wearable fitness devices.Fitbug said being featured on the Jawbone Marketplace, "represents a strong milestone in line with Fitbug's previously announced strategy to increase its market profile as it moves to scale up the business".The Jawbone Marketplace will offer the Slim + Trim Kiqplan, a weight loss programme priced at $19.99, and will also highlight the other plans available on kiqplan.com for US-based Jawbone consumers.A year ago, sales of Jawbone's UP device accounted for 19% of all wearable fitness devices sold in the US.The new Jawbone Marketplace features what it called "best-in-class devices and apps" that monitor fitness, sleep, food, lifestyle and the help control smart home, which work alongside Jawbone's UP.Fitbug shares were up 52% to 8.15p at 10:50 on Thursday.