Sailthru has bought mobile marketing technology company Carnival.io, which had raised $2.4m from backers including GV, for an undisclosed amount.

GV, the corporate venturing arm of internet technology firm Alphabet, has exited US-based mobile marketing automation platform Carnival.io through an acquisition by cloud marketing technology provider Sailthru, which paid an undisclosed amount.

Carnival has built a platform, launched in 2013, which brands can use to engage with and manage their communications to their app-based audiences through personalised messaging.

The company, then known as Carnival Labs, raised $2.4m in 2013 from GV, then called Google Ventures, Lerer Ventures, Flybridge Capital…